$4.75

KOHOUTEK VISITS JSC DEC 28,1973 HOU SPACE CITY COVER NASA

$4.5

USAF THOR AGENA BOOSTER SECRET SAT LAUNCH MAY 25,1972 SWANSON SPACE COVER NASA

$4.75

SOYUZ T-2 DOCKING JUN 6,1980 RUSSIAN SPACE COVER

$3

1970 NASA Apollo 11 Astronaut Neil A. Armstrong Retires Houston 1 July SCCS

$4.75

PROGRESS 30 RETURN TO EARTH JUL 19,1987 RUSSIAN SPACE COVER

$2.5

2018 Japanese JAXA Kounotori HTV-7 ISS Undocking Kennedy Space Center 7 November

$4.75

APOLLO 13 LAUNCH APR 11,1970 FAIRBANKS ALASKA TRACKING SPACE COVER NASA

$4.75

APOLLO 11 LAUNCH JUL 16,1969 CAPE CANAVERAL SPACE COVER NASA

$4

2022 Mars 'Ingenuity' Helicopter 36th Flight Pasadena 10 December

$4.75

KOSMOS 1443 SEP 19,1983 RUSSIAN SPACE COVER

$4.75

USAF ATLAS AGENA POLAR ORBITING SAT LAUNCH FEB 25,1964 SWANSON SPACE COVER NASA

$2

NASA - F-111 Super Critical Wing Flight #5 - Krier/Boyd