Date: | 1904 |
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Description: | The first dirigible purchased by the U.S. Army and its builder, Thomas A. Baldwin. |
Date: | 08 1917 |
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Description: | A training ascension of a captive observation balloon. During their training, soldiers learned how to correctly estimate the effectiveness of artillery on ... |
Date: | 1961 |
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Description: | Little boys watch the arrival of a helicopter over Binh Mung village in Vietnam. |
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