Date: | 1944 |
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Description: | Arnold Batson works with natural and synthetic rubbers in the rubber laboratory at the Gas Power Engineering Department. The original caption reads: "Exper... |
Date: | 1961 |
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Description: | Taking Shape at Harvester Engineering Research Lab, Ht 340 research tractor awaits wheels, seat, steering wheel, etc. Unpainted, skin color is natural shad... |
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