Date: | 1931 |
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Description: | Exterior view of the blacksmith shop at Walnut Grove farm where Cyrus Hall McCormick (1809-1884) invented and built his first reaper in 1831. |
Date: | 1909 |
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Description: | Wilbur Wright, in the bowler hat, preparing the Flyer for the conclusion of the test required to win a U.S. Army contract. The 1908 demonstration had been ... |
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