Engineering: a chuck for a lathe, and a stopcock. Engraving by G. Gladwin after J. Clements.
Wellcome Collection

Engineering: a chuck for a lathe, and a stopcock. Engraving by G. Gladwin after J. Clements.

Joseph Clement

CC0 — Public Domain
Wellcome Collection

Lettering: Mr. Ed. Speer's concentric chucks. Mr. T. Griffiths' stop-cock. ; Drawn by J. Clements. ; Engraved by G. Gladwin.

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