Bonus:
These images must have been from previous flights/missions, as the cards were first-day stamp cancellation bearers, to be postmarked July 16 or 20, 1969. The second one is an astronaut doing a space walk, which is needed to inspect the lunar module by the old-fashioned visual means. The first one was taken after blast-off and the jettisoning of the first-stage, second-stage and launch escape system, from the command module, which has separated itself from the combo Saturn 4B rocket + lunar module, and turns around to link up to the lunar module, before they say bye bye to the rocket, and it goes its merry way. (Is this right, Peter?)