Black-and-white engraved plate of four shell specimens drawn in close detail, numbered 1a, 1b, 2 and 3, with a printed credit line at the bottom.

Lithographed plate of four shell specimens

A black-and-white lithographed natural history plate shows four shell specimens, numbered 1a, 1b, 2 and 3, with oblong and rounded forms rendered in fine stippled shading. Each shell is drawn in close detail against a pale ground, and a printed lithographer's imprint runs along the bottom edge.

Artist: United States Department of War
Date: 1854
Medium: Exploration literature
Source: Wellcome Collection
Size: 2362 × 4000 px

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Public domain · Wellcome Collection marks it Public Domain Mark; made by 1854.
Rights checked 2026-11-05 · tier A · as stated by the source: Public Domain Mark (Wellcome Collection)

Credit (appreciated, not required for public-domain works): Wellcome Collection

19th century 1850s 1854 engraving scientific illustration lithograph natural history plate shells black and white