Date: | 1916 |
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Description: | A poster or signboard showing seven different mechanical safeguards on machines in International Harvester factories. The poster is one of a series illustr... |
Date: | 1916 |
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Description: | A poster or signboard describing lighting specifications at International Harvester factories and their contribution to employee health and safety. Four fa... |
Date: | 1910 |
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Description: | Photo montage, with a sign reading "You can't saw wood with a hammer," along with a machine part, and a young man. The photograph may have been taken at In... |
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