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Picture archive > Search results > YAH001827
Baldwin Calculating Engine
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Caption | This is the US Patent Office model for a printing pinwheel calculating machine patented by Frank S Baldwin of St Louis, Mo., in 1875. The machine has a brass base, two open brass pieces on each side that form a frame, and a brass, steel, and wooden mechanism. A cylindrical drum mounted horizontally on the frame is 11.5 cm. (4–1/2”) in diameter and 5 cm. (2”) in height. Date: 1870s. Record ID: nmah_694172. |
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Creator | Frank S Baldwin, maker |
Artwork medium | unknown |
Credit | National Museum of American History |
Terms of use | Public Domain Dedication (CC0 1.0) |
Search stock images by keyword | Baldwin Calculating Engine Patent Office model printing pinwheel calculating machine patented Frank S Baldwin of St Louis Mo Science Mathematics Calculating Machines Frank S Baldwin |
Stock image ref | Size | Views |
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YAH001827 | 2,048 x 3,072 pixels | 26 |
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