Bidspirit auction | SPACE 1972 SALT CHECK-UP SEARCH
SPACE 1972 SALT CHECK-UP SEARCH & FIND RECON SATELLITE INTERSPACE CACHET COVER VANDENBERG AFB 5-25-72
SPACE 1972 SALT CHECK-UP SEARCH & FIND RECON SATELLITE INTERSPACE CACHET COVER VANDENBERG AFB 5-25-72