| USA 1967 (17 Mar) Space Cover NCAR BALLOON BASE Palestine Texas
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| USA 1967 (17 Mar) Space Cover "BALLOON LAUNCHED/FROM/IMAGE BALLOON/NCAR BALLOON BASE/ PALESTINE TEXAS" and typed manu"TELEMETRY SYSTEM TEST FLIGHT FOR/RAVEN INDUSTRIES OF SOUTH DAKOTA" and affixed with 5c USA Flag stamp cancelled "PALESTINE, TX/MAR 17/PM/1967/75801"
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Item #: INV-128335
Condition Co
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