Hand-coloured engraving of 1820 optical instruments including telescopes, micrometers, a red tripod stand, and measuring devices on a pale background.

Optics: Instruments for Telescopes and Microscopes, Hand-Coloured Engraving

A hand-coloured engraved plate titled Optics, Plate XIII, showing scientific instruments arranged across the page: a brass telescope, a gridded lens-like disc, a ring mount, a cabinet-style device, and red wooden stands. Lower sections show a brass micrometer and a measuring scale. Fine linework and muted washes of color define each object.

Artist: Pass, J.
Date: 1820
Medium: Engravings
Source: Wellcome Collection
Size: 2937 × 4000 px

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Public domain · Wellcome Collection marks it Public Domain Mark; made by 1820.
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

hand-colored print wellcome collection scientific instruments engraved plate optical instruments optics engraving