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Patent model for printers' quoins
CC0 · no rights reserved

Patent model for printers' quoins

Polen, George B. · ca 1876 · metal (overall material)

From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.

About this work

This patent model demonstrates an invention for a quoin which was adjusted by means of a tapered screw; the invention was granted patent number 173493.

National Museum of American History’s own description
Subjects
PatentsCoins (money)manufacture, printers quoinsModelsWork and Industry: Graphic Arts
Credit linePatent model for printers' quoins. ca 1876. Polen, George B.. National Museum of American History. CC0.
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