Patent Model for a Rotary Sheet Perfecting Press
National Museum of American History

Patent Model for a Rotary Sheet Perfecting Press

Parkes, Thomas · ca 1856

metal (overall material)
National Museum of American History
CC0 — Public Domain
National Museum of American History

This patent model demonstrates an invention for a rotary sheet perfecting press which was granted patent number 15437. Type forms were bedded on the two flat surfaces on opposite sides of the type cylinder.

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