Click Here To View The Video of Apollo 15 astronaut David Scott canceling the Decade of Space Achievement stamps on the Moon: https://postalmuseum.si.edu/stampstakeflight/moonmail.html
Transcript of the final minutes of EVA-3, Apollo 15
Commander David Scott, upon opening the Lunar Postal Kit on the surface of the Moon:
To show that our good Postal Service has deliveries any place in the universe, I have the pleasant task of canceling, here on the Moon, the first stamp of a new issue dedicated to commemorate United States achievements in space.
And I'm sure a lot of people have seen pictures of the stamp. I have the first one here on an envelope. At the bottom it says, "United States in Space, A Decade of Achievement," and I'm very proud to have the opportunity here to play postman.
I pull out a cancellation device. Cancel this stamp. It says, "August the second, 1971, first day of issue.” What could be a better place to cancel this stamp than right here at Hadley Rille.
By golly, it even works in a vacuum.
But not too well. But it's the first time, so I guess they're just learning.
James Irwin: You can put a thumbprint on there, Dave.
David Scott: Well...
James Irwin: If there's room left.
David Scott: I've got several dusty thumbprints. Now, I'll stick this back in our special mail pouch here, and we'll deliver it when we return.