| USA 1967 (12 Jul) Space Cover SCIENTIFIC BALLOONING Palestine Texas
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| USA 1967 (12 Jul) Space Cover "COMMEMORATIVE/ SCIENTIFIC/ IMAGE OF BALLOON/ BALLOONING/FLIGHT COVER/ NCAR FLIGHT STATION/ PALESTINE - TEXAS" and typed manu"FLIGHT FOR DR E. EBHART OF/N.C.A.R., BOULDER, COLO./ COLLECT AIR SAMPLES" unaddressed and affixed with 5c Mary Cassatt stamp cancelled "PALESTINE, TX/JUL 12/PM/1967/75801"
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Item #: INV-128469
Condition Co
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