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| Date: | 10 19 1931 |
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| Description: | Edison kinetascope, patented in 1897, one of the first motion picture projectors invented by Thomas A. Edison. It is hand cranked and chain driven. |
| Date: | 1931 |
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| Description: | Placard for display with replicas of Cyrus McCormick's reaper of 1831. The replicas were produced by the International Harvester Company for the "reaper ce... |
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