Spirit duplicator

Rarity: Common

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Notion

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Science and technology

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What Wikipedia says

A spirit duplicator (also Rexograph and Ditto machine in North America, Banda machine and Fordigraph machine in the U.K. and Australia) is a printer invented in 1923 by Wilhelm Ritzerfeld, which was used for most of the 20th century.

Excerpt from the Wikipedia article “Spirit duplicator”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: University of Dundee Museum Services, CC BY-SA 4.0, via Wikimedia Commons.