Lot 1054
Mercury Program, 1958, Mercury 7 Autographs. On a cachet International Geophysical Year FDC. The cover is signed by Carpenter, Cooper, Glenn, Grissom, Schirra, Shepard and Slayton along with Van Allen (discoverer of the Van Allen radiation belt around the earth). All autographs are clean and bold.
Estimated Value $2,500 - 3,500.
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| Realized $2,242 |
