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Cover (and content) flown on the first day of air mail service totally under the control of the U.S. Post Office Department,August 12,1918
 Cover Front |
 Cover Back |
 Certificate |
 Page 1 |
 Page 2 |
 Page 3 |
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Cover (and content) flown on the first day of air mail service totally under the control of the U.S. Post Office Department,August 12,1918
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