1800s Archive · Machinery & technology

New perforating machine used by the Bureau of Engraving and Printing for perforating postage stamps ...

1909

New perforating machine used by the Bureau of Engraving and Printing for perforating postage stamps ..., 1909
New perforating machine used by the Bureau of Engraving and Printing for perforating postage stamps ..., 1909. Machinery & technology — The 1800s Archive, from the Library of Congress record.

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