ckibelf

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Аа Бб Вв Гг Дд Ее Ёё Жж Зз Ии Йй Кк Лл Мм Нн Оо Пп Рр Сс Тт Уу Фф Хх Цц Чч Шш Щщ Ъъ Ыы Ьь Ээ Юю Яя

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⠐⠑⠒⠓⠔⠕⠖⠗⠘⠙⠚⠛⠜⠝⠞⠟
⠠⠡⠢⠣⠤⠥⠦⠧⠨⠩⠪⠫⠬⠭⠮⠯
⠰⠱⠲⠳⠴⠵⠶⠷⠸⠹⠺⠻⠼⠽⠾⠿

© ℗ © ® ™ ℠ ¢ ← ↑ → ↑ ↓ Ƨ ◈ ◇ ◊ △ ∆ ▲ ▼▽ ☆ ★ ✱ ✲ ✿ ❀ ♥ ♡ ♦ ♠ ♣ ♪♫ •
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ⒶⒷⒸⒹⒺⒻⒼⒽⒾⒿⓀⓁⓂⓃⓄⓅⓆⓇⓈⓉⓊⓋⓌⓍⓎⓏ
ⓐⓑⓒⓓⓔⓕⓖⓗⓘⓙⓚⓛⓜⓝⓞⓟⓠⓡⓢⓣⓤⓥⓦⓧⓨⓩ
½ ⅓ ⅔ ¼ ¾ ⅕ ⅖ ⅗ ⅘ ⅙ ⅚ ⅛ ⅜ ⅝ ⅞

❀ flower and bird motifs to the right of AZ = Brian Gardner.
ⓤ = Pressed by United Record Pressing
0 or () = Capitol Capitol Records Pressing Plant, Jacksonville
—◁ = Capitol Records Pressing Plant, Winchester
✲ or ☆ (prior to '64) = Capitol Records Pressing Plant, Los Angeles
◈-P-◈ = MCA Pinckneyville
⧈-G-⧈ = MCA Gloversville
◆ & 2 = Decca or MCA Pressing Plant, Pinckneyville
✤ & 1 = Decca or MCA Pressing Plant, Gloversville
◈ & 3 = Decca or MCA Pressing Plant, Richmond
△ = Sheffield
▭◯▭ = Sonic Arts
a, Q, O = Check Allied Record Company
@ (DC Interlocked) = Dave Crawford (2)
AL = Allentown Record Co. Inc.
AR or ARC = Allied Record Company
ARP or 𝓐𝓡𝓟 = American Record Pressing Co.
BW = Bestway Products Inc.
CS or CSM = Columbia Records Pressing Plant, Santa Maria
CT or CTH = Columbia, Terra Haute, IN
CP = Columbia, Pitman, NJ
G or G1 = Columbia Records Pressing Plant, Carrollton, GA
H = (RCA Releases) RCA Records Pressing Plant, Hollywood
HRM = Hauppauge Record Manufacturing Ltd.
I = (RCA Releases) RCA Records Pressing Plant, Indianapolis
IAM 'Triangle' or Anvil = Capitol Scranton, PA
LP = Shelley Products (London label)
LY = Shelley Products (Atlantic label)
MG or MGS = MGM Record Mfg. Division, Bloomfield, NJ
MO = Monarch Record Mfg. Co.
MR = Monarch Record Mfg. Co.
PH = PRC Recording Company, Richmond, IN
P, PIT = Columbia Records Pressing Plant, Pitman
PL or PP = Plastic Products
PR = Presswell
PRC = PRC Recording Company, Richmond, IN
PRC-C or PRC-W = PRC Recording Company, Compton, CA
RI = Philips Recording Co., Richmond, IN
R = (RCA Releases) RCA Records Pressing Plant, Rockaway
SH = Shelley Products (Parrot label)
SO = Sonic Recording Products, Inc.
SP = Specialty Records Corporation
Ƨ, S, SI, S S2, = Columbia Records Pressing Plant, Santa Maria
(Ƨ) in a circle = Shelley Products
sᴛᴇʀʟɪɴɢ or SS = Sterling Sound (mastering)
TI, TII, TII, CT or CTH = Columbia Records Pressing Plant, Terre Haute
T, 1T, T1, 2T, T2 = Columbia Records Pressing Plant, Terre Haute
X (Embossed) = Shelley Products

A&M Records label codes;
X = Columbia Records Pressing Plant, Pitman
Y or y = Columbia Records Pressing Plant, Terre Haute
Z = Columbia Records Pressing Plant, Santa Maria
W = Columbia Records Pressing Plant, Carrollton, GA
C = Monarch Record Mfg. Co. (pre-1985), Electrosound Los Angeles (1985-86)
B = Electrosound Group Midwest, Inc.
R = RCA Records Pressing Plant, Indianapolis
W = H.V. Waddell Co. (Not on Atlantic Releases)

16 = Sonic Recording Products, Inc./Goldisc Recording Products, Inc.
18 = Presswell
19 = Bestway Products Inc.
22 = Allied
24 = Monarch Record Mfg. Co.
25 = Columbia Records Pressing Plant, Santa Maria
26 = PRC Recording Company, Compton, CA
30 = Plastic Products
49 = Specialty Records Corporation
53 = Keel Mfg. (prior to ’79); Hauppauge Record Manufacturing, Ltd. (’79 and later)
54 = Shelley Products
56 = Columbia Records Pressing Plant, Pitman
70 = RCA Records Pressing Plant, Indianapolis
72 = PRC Recording Company, Richmond, IN
73 = Columbia Records Pressing Plant, Terre Haute
74 = Electrosound Group Midwest
76 = Hub-Servall Record Mfg. Corp.

Columbia Recording Studios Identifiable by machine-stamped codes in the runouts: ZTSP (7" 45 RPM mono), ZTEP (7" 45 RPM EP mono), TLP (1949 custom 10" LP's), XTLP (1949 custom 12" LP's), TV (10"), XTV (12" LP mono), XSV (12" LP stereo), ZTV (7" mono), ZSV (7" stereo), QXSV (12" LP quadraphonic), QZSV (7" quadraphonic), P (10" 78 RPM), XP (12" 78 RPM), ZP (7" 78 RPM), PA (10" 78 RPM EP), XPA (12" 78 RPM EP), ZPA (7" 78 RPM EP). Additionally one of Columbia Recording Studios' mastering rooms, in the 1956-57 period, did have a stamped 5-pointed star on some lacquers on both LP and 45. Seen on both Hollywood and Bridgeport pressings.

II. 1955 - 62
On December 10, 1954 a new system of master serial number codes was instituted that took effect at the start of 1955, in the wake of the full adoption of RCA's "New Orthophonic" High Fidelity system. Known revisions were placed into effect on March 13, 1956 and March 20, 1957; in mid-1958 (probably June), additional codes were put in place to account for the adoption of stereo discs. Many characters were used more than once during this period. After stereo discs were produced, those codes designated "Fine" were changed to Mono.
First Character - Year Code:
- F = 1955
- G = 1956
- H = 1957
- J = 1958
- K = 1959
- L = 1960
- M = 1961
- N = 1962
(Had this carried past 1962 in the U.S. and Canada, the following codes would have been used:
- O = 1963
- P = 1964
- Q = 1965
- R = 1966
- S = 1967
- T = 1968
- U = 1969
- V = 1970
- W = 1971
- X - 1972
- Y = 1973
- Z = 1974
- a = 1975
- b = 1976
- c = 1977
- d = 1978
- e = 1979
[lower case letters not mine]
Letters O through U were famously used by RCA Italiana through 1969, after which they fell in line with the then-current code system that will be dealt with below)
Second Character -
a. Numerical Label Description:
- 1 = Bluebird
- 2 = RCA Victor
- 3 = Camden
- 4 = "X" Label & Vik
- 5 = Groove (1955-57) / Hugo & Luigi Productions (1959-62)
- 6 = HMV (1955-57) / Groove (1961-62)
- 7 = Custom - Recorded at RCA
- 8 = Custom - Re-recorded from client source
- 9 = Custom - Lacquer furnished to RCA
(7 and 8 also used for Reader's Digest box sets from 1960-62)
b. Used in Other Countries:
- A = Argentina
- B = Belgium
- C = Brazil
- D = Canada
- E = Chile
- F = England
- G = France
- H = Germany
- K = Italy
- L = Japan
- M = Mexico
- N = New Zealand
- P = Norway
- Q = North Africa
- R = Spain
- S = Sweden
Third Character -
a. Category:
- C = Children's
- E = Educational
- F = Slide Film - Frequency
- G = Gramophone - Recorded in U.K. (3/13/56)
- J = R&B - Jazz
- M = Transcription (Thesaurus)
- N = Promotion & Premium
- O = Phonograph (sometimes shown as 0)
- P = Popular
- R = Classical - Red Seal
- S = Slide Film - Manual
- T = International - Recorded in U.S.A.
- U = Slide Film - Universal
- W = Country & Western
- Z = International - Recorded outside U.S.A.
b. Owned by Other Countries:
- A = Popular
- B = Classical
- D = Children
- G = Country & Western
- H = R&B - Jazz
- K = Educational
- L = Promotional
Fourth Character - Size, Speed & Groove:
- A = 7" - 45 RPM - Standard (3/20/57) / 7" - 45 RPM - Stereo (6/58)
- B = 10" - 78 RPM - Standard (1955-58) / Master Tape (1958-62)
- C = 12" - 78 RPM - Standard
- D = 10" - 33⅓ RPM - Standard or Transcription
- E = 10" - 33⅓ RPM - Standard or Transcription
- F = 10" - 33⅓ RPM - Universal - Custom
- G = 5" - 78 RPM - Special - 85¢ (1955-58) / 7" - 33⅓ RPM - EP - Stereo (1958-62)
- H = 7" - 45 RPM - EP - Fine (Mono)
- I = 7" - 33⅓ RPM - Mono (1958-62)
- J = 7" - 33⅓ RPM - Standard - Custom
- K = 7" - 33⅓ RPM - Universal - Custom
- L = 10" - 33⅓ RPM - Fine (Mono)
- M = 16" - 33⅓ RPM - Standard or Transcription
- N = 16" - 33⅓ RPM - Universal or Transcription
- O = 7" - 33⅓ RPM - Stereo (6/58)
- P = 12" - 33⅓ RPM - Fine (Mono)
- Q = 7" - 33⅓ RPM - EP - Mono - RCA Victor Commercial (1958-62)
- R = 12" - 33⅓ RPM - Universal or Transcription
- S = 6½" - 78 RPM - Standard - Custom
- T = 6" - 78 RPM - Standard - Children's
- U = 7" - 33⅓ RPM - Fine - Custom (1955-58) / 7" - 33⅓ RPM - EP - Mono - Custom or Promotional (1958-62)
- V = 7" - 78 RPM - Standard - Spinner
- W = 7" - 45 RPM - Fine (Mono)
- X = 7½ ips - Single Track Tape (changed eff. 3/13/56 to Double-Track Tape) / 10" - 33⅓ RPM - Stereo (1958-62)
- Y = 12" - 33⅓ RPM - Stereo (6/58)
- Z = 7" - 45 RPM - EP - Stereo (6/58)
As you can see, in the fourth character all 26 letters in the alphabet were used, in some cases more than once.
For instance, an RCA popular single from 1955 would have an F2PW- prefix. The code was broken down thus:
F = 1955
2 = RCA Victor
P = Popular
W = 7" - 45 RPM - Fine (Mono)
It was with this set that the practice of switching second and third characters of custom matrix numbers began to take effect after the block of numbers passed the 10,000 mark. By the end of 1955, for example, there was this single with an FO-7W- prefix, signifying:
F = 1955
O = Phonograph
7 = Custom - Recorded at RCA
W = 7" - 45 RPM - Fine
10" stereo LP's were very rare. One prime example was Various - Motorola Presents - Progress In Sound / Magic Moments In Music, with a K8OX (shown as K80X) prefix, indicating:
K = 1959
8 = Custom - Re-recorded from client source
0 = Phonograph
X = 10" - 33⅓ RPM - Stereo
An example of how other countries' systems worked was RCA Italiana, notably The Latins - Selene which had an MKAW prefix on both sides, which stood for:
M = 1961
K = Italy
A = Popular
W = 7" - 45 RPM - Mono

III. 1963 - 1990's
Upon RCA's adoption of the infamous "Dynagroove" system for cutting records, they instituted their third and last revision of matrix number codes (presumably drawn up in December 1962). In the third and fourth characters there were two different categories: records, and master tapes. The latter is pertinent given the showing of such numbers in booklets that accompanied CD box sets of key artists (i.e. Perry Como, John Denver) that were put out by RCA in the 1990's, and thus will be shown here. Starting in 1966 with Colgems, RCA began distributing several labels; where applicable, such codes (especially after 1973) will be noted. After June 1973, RCA and sublabels ceased showing serial numbers on their labels, revamping their catalogue series so that each side would be designated, as prior to 1951 on 45's and 78's, by what in RCA parlance was called "part numbers" (i.e. [catalogue number]-A or -B); characters after 1973 are gleaned from recording information in said artist box set booklets (and some rudimentary research at BMG archives).
First Character - Year Code:
- P = 1963
- R = 1964
- S = 1965
- T = 1966
- U = 1967
- W = 1968
- X = 1969
- Z = 1970
- A = 1971
- B = 1972
- C = 1973
- D = 1974
- E = 1975
- F = 1976
- G = 1977
- H = 1978
- J = 1979
- K = 1980
- L = 1981
- M = 1982
- N = 1983
- O = 1984
- P = 1985
- R = 1986
- S = 1987
(continued for a few years past 1987, but have no concrete information)
Second Character -
a. Label Designation:
- A = Grunt
- B = TMI
- C = Camden
- D = Neon
- E = Educational
- F = Wooden Nickel
- G = Groove (1963-64) / Roxbury (1973-74)
- H = Hugo & Luigi Productions (1963-64) / Chelsea (1972-74)
- I - Tom Cat (1975-77)
- J = Children
- K = Daybreak
- L = Wheel
- M = George Jones Musicor masters
- N = Promotional & Premium
- P = Popular
- R = Red Seal
- S = International
- T = Gregar (1970-71) / Metromedia (1973-74)
- V = Victrola
- W = Country & Western
- X = Chart (1967-69) / Flying Dutchman (1973-74) & Signature (1974-76)
- Y = Calendar & Kirshner (1967-72) / Gryphon (1974)
- Z = Colgems (1966-70) / Soul Train & Solar (1975-81)
b. Custom:
- 1 = Transcription
- 2 = Thesaurus
- 3 = Recorded at RCA
- 4 = Re-recorded from client's furnished tapes
- 5 = Lacquer furnished to RCA
(The first two numbers were used on countless Reader's Digest box sets, '1' especially.)
Third Character -
a. Size & Speed:
- A = 9" - 16⅔ RPM
- K = 7" - 45 RPM
- L = 7" - 33⅓ RPM
- N = 10" - 78 RPM
- P = 10" - 33⅓ RPM
- R = 12" - 33⅓ RPM
b. Master Tape:
- A = RCA and Subsidiary Labels
- B = Distributed by RCA
- C = Recorded in non-RCA studios outside U.S.A.
Fourth Character -
a. Groove:
- A = EP - Stereo
- B = EP - Mono (Fine)
- C = Mono (Coarse)
- E = Slide Film - Manual or Automatic
- G = Mono (Fine - Thesaurus?)
- H = Mono (Standard or Transcription)
- K = Slide Film - Manual
- L = Universal - Custom(?)
- M = Mono (Fine)
- N = Slide Film - Automatic
- P = Slide Film - Automatic(?)
- S = Stereo
- T = Quadraphonic
b. Master Tape:
- 1 = Recorded in New York
- 2 = Recorded in Chicago (discontinued after 4/26/72)
- 3 = Recorded in Hollywood (discontinued 1/77)
- 4 = Recorded in Nashville (discontinued 1/77)
- 5 = Recorded in outside studios in U.S.A.
- 6 = Recorded outside U.S.A.
How this worked on RCA releases is as follows: The Youngbloods' "Get Together" was recorded in New York on August 29, 1966. At that session it was assigned master serial number TPA1-7511, the prefix signified thus:
T = 1966
P = Popular
A = Master Tape - RCA
1 = Recorded in New York
When it was issued on 45 RPM first as 47-9264 in 1967, then as 47-9752 in 1969 and then reissued in the Gold Standard Series as 447-0847 around 1970, the serial number was shown as TPKM-7511, with the prefix grouped as follows:
T = 1966
P = Popular
K = 7" - 45 RPM
M = Mono (Fine)
In 1966, RCA Custom was especially busy (as confirmed by a Billboard magazine article from December 10, 1966), to the point where the block of numbers passed the 20,000 mark, signifying another switching around of characters. LP's started bearing 4TRM or 4TRS prefices, each signifying:
4 = Custom - Re-recorded from client's furnished tapes
T = 1966
R = 12" - 33⅓ RPM
M = Mono / S = Stereo
78 RPM releases were very few and far between, and confined to stock music libraries if at all. A few 78's from 1963 and 1964 are shown here, only one from each year will be displayed:
- Richard Hoffman (6) - Depths Of The Sea / Big Worry / Bloodhound
- George Gigot - Business As Usual / Making Hay While The Sun Shines
As for RCA master tapes, those with 1 or 3 or 4 numbers were not necessarily recorded there, but had their master serial numbers assigned there from tapes recorded elsewhere. This was most acute on Elvis Presley sessions for his film soundtracks and Elvis TV special, where if you have looked at his sessionographies such numbers were assigned out of the Hollywood studios between at least 1963 and 1967, and by New York from 1968 to 1969 (which is why, for instance, the master tape for "If I Can Dream" bore a WPA1- prefix despite being recorded on the West Coast). (Prior to 1962, Elvis sessions were grouped so that, in the third character, 'W' signified regular studio recordings and 'P' was used for soundtrack music.)

Deadwax mastering info

G.S.V.) -> Greg Vaughn
(spiral sign) @ D+M -> Robert Henke ( Dubplates-mastering, Berlin )
*-J.T.S.-* -> JTS Studio, London
cul -> Moritz von Oswald
@t GP -> George Piros
“Soundmaster” Lionel @ Translab, Paris -> Lionel Nicod
7AP -> Augustus Pablo
A 1ST FOR KEV – TOWNHOUSE -> Kevin Metcalfe ( Townhouse Studios, London )
A Porky ‘Oh yes’ Prime cut -> George Peckham
A Porky Prime Cut -> George Peckham
A PORKY PRIME CUT -> George Peckham
A Porky Prime Er-Er-Er Goldfish I Think -> George Peckham
A Porky Prime sniff sniff cut -> George Peckham
A PORKY PRIME TANGO -> George Peckham
Allen Zentz -> Allen Zentz
AM -> Andy Mellwig ( The “A” looks like triangle; Dubplates-mastering, Berlin )
an “A with M” sign -> Andy Mellwig ( Dubplates-mastering, Berlin )
andreas at schnittstelle -> Andreas Kauffelt
andreas@schnittstelle -> Andreas Kauffelt
ARUN -> Arun Chakraverty
AT-GP -> George Piros
Audiodisc YYMMDD -> Pressed at Audiodisc AB
Az -> Allen Zentz ( note the lower case Z )
AZ -> Allen Zentz Mastering Company
AZ (with birds/flower) -> Brian Gardner ( Allen Zentz Mastering Company )
AZ CB -> Chris Bellman ( Allen Zentz Mastering Company )
B.E C.R -> Björn Engelmann ( Cutting Room, Stockholm )
B.E-C.R -> Björn Engelmann ( Cutting Room, Stockholm )
B.G. -> Bernie Grundman
BA -> Björn Almstedt
BA•CR -> Björn Almstedt ( Cutting Room, Stockholm )
BA-CR -> Björn Almstedt ( Cutting Room, Stockholm )
BA-EF -> Björn Almstedt
BA-GP -> Björn Almstedt
BA-T∞ -> Björn Almstedt
Beau -> Beau Thomas
BEAU -> Beau Thomas
beau -> Beau Thomas
Bell Sound -> Bell Sound Studios
Bell Sound sf -> Sam Feldman ( Bell Sound Studios )
BH or BHH -> Bobby Hata
BilBo -> Denis Blackham ( which looks like BiBo )
Bilbo master room -> Denis Blackham
BK -> Bill Kipper
BKG -> Brian Gardner
C.R -> Cutting Room, Stockholm
C.T.S. Wembley -> C.T.S. Studios, Wembley.
CGB -> Christoph Grote-Beverborg
CGB / D+M -> Christoph Grote-Beverborg ( Dubplates-mastering, Berlin )
CGB @ D&M -> Christoph Grote-Beverborg ( Dubplates-mastering, Berlin )
CGB@D&M -> Christoph Grote-Beverborg ( Dubplates-mastering, Berlin )
CHRIS P @ UNITY -> Chris Parmenidis
COPYMASTERS – Miles -> Miles Showell
CR -> Cutting Room, Stockholm
CSB ♪♪ -> Carlton Batts ( followed by two musical notes )
CURVE PUSHER. -> Curve Pusher Mastering, London
D Jay @ Masterpiece -> Danny King ( Masterpiece Mastering, London )
D&m -> Dubplates-mastering, Berlin
D. SWABY -> Dudley Swaby
D.A.S. Disc Mastering -> Digital Audio Solutions
D+M -> Moritz Von Oswald ( (note; M has a hook on the end); Dubplates-mastering, Berlin )
DAMONT -> Pressed at Damont Audio Limited
DAS Disc Mastering -> Digital Audio Solutions
DB -> Denis Blackham
DCHARLES -> Dick Charles ( Handwritten signature )
DFI -> Pressed at DFI
Djay@ Masterpiece -> Danny King ( Masterpiece Mastering, London )
DK -> Dennis King
DMM -> Direct Metal Mastering
DMS C -> The Hit Factory, DMS, NYC
DMS cg -> Chris Gehringer ( The Hit Factory, DMS, NYC )
DMS cg [peace sign] -> Chris Gehringer
DMS Coin -> The Hit Factory, DMS, NYC
Doug -> Doug Sax
DUDLEY SWABY -> Dudley "Manzie" Swaby
EURODISC -> Eurodisk Manufacturing
EUROPADISK -> Pressed at Europadisk, NYC.
EXCHANGE 2000 – SIMON. -> Simon Davey
F.A. -> Frank Arkwright
F.A. Metropolis -> Frank Arkwright ( Metropolis Studios, London )
F/W -> Frankford Wayne Mastering Labs, NYC.
F/W J -> Frankford Wayne Mastering Labs, NYC.
Finnvox MJ -> Mika Jussila
FOON MASTERING -> Foon Mastering Center
Frankford/Wayne -> Frankford Wayne Mastering Labs, NYC.
Frankford/Wayne Mastering by Michael -> Michael Sarsfield ( Frankford Wayne Mastering Labs, NYC. )
FST @ D+M -> Frederic Stader ( Dubplates-mastering, Berlin )
FST D+M -> Frederic Stader ( Dubplates-mastering, Berlin )
FST>D+M -> Frederic Stader ( Dubplates-mastering, Berlin )
FTS -> Federal Recording Studios, Kingston / Total Sounds
G.K. -> Gilbert Kong
GC -> Greg Calbi ( Sterling )
Gene -> Gene Thompson
GEORGE – COPYMASTERS -> George Peckham
GK -> Gilbert Kong
Gordon at the Townhouse -> Gordon Vickary
GP -> Grammoplast, Sweden
Graeme -> Graeme Durham
GRAEME – SOUND CLINIC -> Graeme Durham
GRAZ – The Exchange -> Graeme Durham
Graz@The Exchange -> Graeme Durham
greyham the exchange -> Graeme Durham
GSV -> Greg Vaughn ( or “G5V“ )
GUY’S – THE EXCHANGE -> Guy Davie
HEM cg -> Chris Gehringer
Herb :^) -> Herb Powers Jr.
Herbie :^) -> Herb Powers Jr.
Herbie Jr :^) -> Herb Powers Jr.
Herve @ Translab -> Hervé Bordes
HFM ´[number] -> The Hit Factory, DMS, NYC
HFM cg -> Chris Gehringer ( The Hit Factory, DMS, NYC )
HP -> Herb Powers Jr.
HTM -> Harry Moss
HuB -> Frankford Wayne Mastering Labs, NYC. ( ? )
HW -> Howie Weinberg
J.Y. -> Joe Yannece
JA Tape One -> Jack Adams
Jacko – Tape One -> Jack Adams
JC Masterroom -> Jeremy Cooper
JD -> John Dent
JD-ASH -> John Dent and Ashley Burchett ( ? )
John D -> John Davis
JON2 -> John Dent
Jonz -> John Dent
Jonz @ Loud Mastering -> John Dent ( Loud Mastering )
K -> Andreas Kauffelt
K.P. -> Ken Perry
KDISC -> K Disc Mastering
Kendun -> Kent Duncan
LAWRIE @ CURVE PUSHER -> Lawrie Immersion
LB -> Larry Boden
LH -> Lee Hulko
Lionel & Hervé @ Translab -> Lionel Nicod & Hervé Bordes
Loop-0 at D&M -> Loop-o ( Dubplates-mastering, Berlin )
Lupo -> Loop-o
M.M.M.J.R. -> Mark Richardson (3) ( Metropolis Mastering, Chicago )
MANDY @ THE EXCHANGE -> Mandy Parnell
MARTIN @ C.T.S. -> Martin Giles
MASTERDED BY CAPITOL -> Capitol Studio & Mastering , Hollywood
MASTERDISK -> Masterdisk, NYC
MASTERDISK G.K. -> Gilbert Kong
MASTERDISK TD -> Tony Dawsey ( Masterdisk, NYC )
Mastered at Abbey Rd -> Abbey Road Studios, London
mastered at 'Abbey Road' -> Abbey Road Studios, London
MASTERED AT ALLEN ZENTZ L.A., CALIF. -> Allen Zentz Mastering Company
MASTERED BY CAPITOL Wally -> Wally Traugott ( Capitol Studio & Mastering , Hollywood )
Mastered by NIMBUS, England -> Nimbus
Mastered MIAMI TAPE -> Miami Tape, Hialeah ( (“MIAMI TAPE” is stamped) )
MATT OPTIMUM -> Matt Colton
MCR -> Master Cutting Room, NYC.
Metropolis Mastering Chicago M.J.R. -> Mark Richardson (3)
MIKE @ THE EXCHANGE -> Mike Marsh
Mike @ The Exchange -> Mike Marsh
Mike’s™ -> Mike Marsh
MILES -> Miles Showell
MJFX -> Mika Jussila
MMMJR -> Mark Richardson (3) ( Metropolis Mastering, Chicago )
MPO -> Moulages et Plastiques de l’Ouest, Averton.
MR -> Mark Regan
Neil – Masterpiece -> Neil Devine
Neil Masterpiece -> Neil Devine
Nick -> Nick Webb Abbey Road Studios, London )[/i]
Nick's cut! -> Nick Webb Abbey Road Studios, London )[/i]
NILZ – THE EXCHANGE -> Nilesh Patel
NIX MIX TOWNHOUSE -> Larry Nix
Noel @ Transfermation -> Noel Summerville
NOMIS -> Simon Davey ( “Simon” backwards )
NSC -> National Sound Corporation, Detroit ( used to be solely Ron Murphy (except some very early stuff), now also Heath Brunner )
Ø(Phase) -> Ashley Burchett
Ø(Phase) @ Whitfield London -> Ashley Burchett
ø@CURVE PUSHER -> Ashley Burchett
Ø[Phase] -> Ashley Burchett
Øphase -> Ashley Burchett
øPHASE -> Ashley Burchett
øPHASE @ WHITFIELD ST -> Ashley Burchett
Øphase@ Curve Pusher -> Ashley Burchett ( Curve Pusher Mastering, London )
ORLAKE -> Orlake Records, Dagenham
P.A. -> Phil Austin ( Trutone )
P.O.R.K.Y. -> George Peckham
PAUL S @ PORKY’S -> Paul Solomons
Paul S @ Porky’s -> Paul Solomons
PAUL’S @ PORKYS -> Paul Solomons
Paul’s @ Porkys -> Paul Solomons
PAUL’S THE EXCHANGE -> Paul Solomons
Pauls’ The Exchange -> Paul Solomons
PCMJR -> Mark Richardson (3) ( Prairie Cat Mastering, Belvidere )
PD -> Peter Dahl
PD-CR -> Peter Dahl ( Cutting Room, Stockholm )
PECKO -> George Peckham
PECKO DUCK -> George Peckham
Pete @ Tape To Tape -> Pete Norman
PIPO NYC -> Alberto Roges
POLAR -> Polar Mastering, Stockholm (defunct, now Masters of Audio, Stockholm)
Pole -> Pole
POM TR -> Pompon Finkelstein ( Translab, Paris )
porkeys prime cut -> George Peckham
Porky -> George Peckham
Porky Prime Cut -> George Peckham
Porky Primed -> George Peckham
Porkys -> George Peckham
Primed -> George Peckham
R @ D&M -> Rashad Becker ( Squiggly lower case ‘r’; Dubplates & Mastering ,Berlin )
Rashad -> Rashad Becker
Ray at The Exchange -> Ray Staff
RCE -> Rick Essig ( F/W )
RJ -> Ray Janos ( Sterling )
RL -> Bob Ludwig
RV -> Hervé Bordes
S.D -> Simon Davey
S.M. M.J.R. -> Mark Richardson (3) ( Session Masters, Carol Stream )
SD -> Simon Davey
Sean Abbey rd i...i -> Sean Magee ( Abbey Road Studios, London )
sf -> Sam Feldman
SH -> Steve Hall
SHANE -> Shane McEnhill
Shane – the cutteR -> Shane McEnhill ( Graffiti Style; The “h” looks more like a “t” )
Shane @ Heathman’s -> Shane McEnhill ( Graffiti Style; The “h” looks more like a “t” )
SI MASTERPIECE -> Simon Francis
SI Masterpiece -> Simon Francis
SIMON – THE EXCHANGE -> Simon Davey
SIMON „HOOVER POWER“ DAVEY -> Simon Davey
SIMON „NEW SHOOS“ DAVEY -> Simon Davey
SIMON „NIGHT NURSE“ DAVEY -> Simon Davey
simon the exchange -> Simon Davey
SIMON. -> Simon Davey
SNB -> Sabin Brunet
Sound Clinic -> The Sound Clinic, London
Sound Clinic, Graeme -> Graeme Durham ( The Sound Clinic, London )
Sound Clinic/Jonz -> John Dent ( The Sound Clinic, London )
SR -> Stan Ricker
SR/2 -> Stan Ricker
SR2 -> Stan Ricker
SRC signature -> Specialty Records Corporation ( (Stamped, Large S with the R and C in the loops) )
SST -> Schallplatten Schneid Technik, Frankfurt
STERLING -> Sterling Sound, NYC
STRAWBERRY U.K. -> Strawberry Mastering, London
STREAKY @ SOUNDMASTERS -> Streaky
Stu -> Stuart Hawkes
Stu. @ Masterpiece -> Stuart Hawkes
Tape One JA -> Jack Adams
TC -> Tom Coyne
THE EXCHANGE -> The Exchange, London
The Exchange – GD -> Guy Davie
THE EXCHANGE – NILZ -> Nilesh Patel
Tim D. -> Tim Dennen
Tim D. Masterpiece -> Tim Dennen
tim dixon masterpiece -> Tony Dixon
TIMTOM -> Tim Young
Timtom -> Tim Young
TJ -> Ted Jensen ( Sterling )
TLC -> The Lacquer Channel Mastering, Toronto
TML -> The Mastering Lab , Hollowood
TML-M -> The Mastering Lab , Hollowood ( M=Master )
TML-S -> The Mastering Lab , Hollowood ( S=Slave )
TML-X -> The Mastering Lab , Hollowood ( X=Extra )
TOWN HOUSE -> Town House Studios, London
TOWNHOUSE -> Town House Studios, London
Townhouse -> Town House Studios, London
Townhouse Max -> Max Dingel
tph@schnittstelle -> Thomas P. Heckmann
TR -> Translab Mastering, Paris
Transfermation -> Transfermation Mastering, London
TRANSITION -> Transition Mastering Studios, London
Transition -> Transition Mastering Studios, London
Truetone Mastering NYC Carl -> Carl Rowatti ( “Truetone” or “Trutone”? )
Trutone -> Trutone Inc, NYC
Trutone NY – PA -> Phil Austin
Trutone NYC Carl -> Carl Rowatti
ty -> Tim Young

https://www.discogs.com/lists/US-Record-Pressing-Plants/213755

https://www.friktech.com/labels/ColumbiaLabelography.pdf (Columbia labels)
https://worldradiohistory.com/Archive-All-Music/Billboard-Magazine.htm
https://worldradiohistory.com/Archive-All-Audio/High-Fidelity-Magazine.htm
https://www.discogs.com/group/thread/809508
https://www.discogs.com/user/steverogers (For other useful links)