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Rotary Neostyle Duplicator, c. 1905...
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Mignon Pencil Sharpening Machine, c. 1910...
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4 Check Writers...
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Porcelain Sculpture of Johannes Gutenberg by ...
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Multiple Writing Machine by Edwin T. Ponting,...
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4 Check Writers...
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3 Duplicating Apparatuses, c. 1900-20...
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2 Photocopiers, c. 1930...
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2 Duplicating Apparatuses, c. 1900-20...
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The Edison Mimeograph (Model 4) and 2 Copying...
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Large Model of a Chappe Telegraph...
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Slaby-Arco System Radiotelegraph Transmitter,...
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German Telegraph Station by Siemens & Halske,...
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Ericsson AC110 Skeleton Telephone...
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Wireless Telegraphy Coherer Receiver by Meise...
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Facsimile "Belinographe", c. 1925...
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Hughes Printing Telegraph, c. 1875...
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3 Spoked-Wheel Calculating Machines...
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2 Multifix Calculating Machines, 1955-60...
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Conto Model A Calculating Machine, 1906 onwar...
