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Date: | 1926 |
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Description: | Comparative infection of "yellows" in a field of alfalfa and sweet clover. |
Date: | 1926 |
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Description: | Concrete chimney experiment at the University of Wisconsin. |
Date: | 05 26 1926 |
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Description: | Machine for testing wind leakage through windows and doors, set up at Randall shops, and manufactured by Monarch Metal Products. |
Date: | 09 11 1939 |
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Description: | Engineering photograph of experimental McCormick-Deering Farmall B tractor with 32 inch rear wheels. Three-quarter view towards right front. |
Date: | 03 16 1927 |
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Description: | Engineering photograph of men field testing an experimental cotton picker pulled by a Farmall tractor. |
Date: | 06 12 1917 |
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Description: | Engineering photograph of a man field testing a limited production motor cultivator. Original caption reads: "... the 1916 motor cultivator with the additi... |
Date: | 02 16 1923 |
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Description: | Engineering photograph of an experimental Farmall tractor. A white backdrop is set up along the brick wall in the background. |
Date: | 02 16 1923 |
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Description: | Engineering photograph of an experimental Farmall tractor. Right side view. |
Date: | 05 15 1930 |
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Description: | Engineering photograph of an experimental Farmall tractor with "increased power." Right side view. |
Date: | 10 11 1939 |
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Description: | Engineering three-quarter view towards left front of an experimental Farmall M tractor. |
Date: | 1939 |
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Description: | Elevated view of men field testing an experimental 12 foot McCormick-Deering combine (harvester-thresher) with a Farmall M tractor. Mountains are in the ba... |
Date: | 1939 |
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Description: | Elevated view of men field testing an experimental McCormick-Deering 12 foot combine with a Farmall M tractor. |
Date: | |
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Description: | Unidentified explorer standing in field of snow with the Horlick Mountains of Antarctica in the background. The Horlick Mountains were named by Admiral Ric... |
Date: | 1938 |
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Description: | Curtiss-Wright Condor biplane named "William Horlick" outfitted with skis for use during Adm. Richard E. Byrd's second Antarctic expedition, 1933-35. The ... |
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Description: | Engineering photograph of an experimental International 12-22 tractor. |
Date: | 1919 |
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Description: | Man operating an experimental McCormick motor-driven grain binder in a field. |
Date: | 1921 |
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Description: | Man operating an experimental(?) reverse drive tractor with mounted hay rake in a field. |
Date: | |
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Description: | A woman dressed to play golf smiles as a bucket of golf balls is spilled at her feet. This is one of several demonstrations of strobe light functions at F... |
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Description: | A man dressed in a football uniform demonstrates the art of drop-kicking the football. This is one of several demonstrations of strobe light functions at ... |
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