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| Date: | |
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| Description: | Ringling Brothers-Barnum & Bailey circus performers gathered in front of a circus tent to view a solar eclipse. Some are wearing protective eyeglasses. |
| Date: | 1953 |
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| Description: | Trucks mounting a steep grade in the testing track at International Harvester's Phoenix Proving Ground. Opened in 1947, the proving ground was used by Inte... |
| Date: | 1953 |
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| Description: | View of International Harvester's Phoenix Proving Ground. Opened in 1947, the proving ground was used by International Harvester through the 1970's to test... |
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