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25 January 1971

Tycho Brahe and an armillary sphere a nuclear rocket leaves Earth for Mars the crew performs an EVA on Mars liftoff from the Martian surface the Mars landing craft separates from the orbital module prior to landing Mariner 4
Project Mars flight path (souvenir sheet of 1 stamp) Project Mars flight path (imperforate souvenir sheet of 1 stamp)
Michel #s 678-83A, Blocks 232A-B