Postcard has some interesting data about the SB-2 ball bearing yo-yo aboard the Space Shuttle. Oddly enough, the card did not identify the American NASA astronaut using the SB-2 in the photo. His full name was Jeffrey Alan Hoffman. He is aboard the Space Shuttle Atlantis on mission STS-46 that launched July 31, 1992 and landed August 8, 1992.
Tom preferred postcards as a way of advertising his products because the recipient didn't have to open any envelope; the card got your attention immediately.
