🦄 Thomas Pennant’s Allgemeine Uebersicht der vierfüssigen Thiere Weimar: Im Verlage des Industrie-Comptoir’s, 1799-1800. Original source Image description: Historical illustration showing two rhinoceros figures labeled as “unicorn” variants. The top figure depicts a rhinoceros with a single horn and segmented, armor-like skin plates with textured patches, standing beside a small plant. The bottom figure shows a rhinoceros with two horns, a smoother body texture, and muscular limbs, facing right. Both animals are drawn with detailed shading and anatomical features, highlighting their horns and skin textures. Handwritten German text identifies them as “1. Das einhörnige Nashorn” (the one-horned rhinoceros) and “2. Das zweihörnige Nashorn” (the two-horned rhinoceros), linking to the traditional concept of the unicorn.