Date: | 1915 |
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Description: | Employees working with lecture charts and films in an International Harvester Agricultural Extension Department office. |
Date: | 1919 |
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Description: | Group of male and female workers assembling International Harvester Agricultural Extension lecture charts. |
Date: | 1915 |
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Description: | Professor Perry Holden (right) and an unidentified man sitting at a desk and looking over promotional materials from International Harvester's Agricultural... |
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