Rare rocket mail from Friedrich Schmiedl on a pyramid-shaped USA satellite.
2 Austrian stamps and commemorative vignette. Only 72 copies of this vignette existed, this one is hand-numbered and handsigned by Schmiedl.
Additional typewritten information at upper left corner.
Start: Vandenberg Thor-Agena missile nuclear test. Measurements of the increase in radioactivity at different levels of the atmosphere.
Clean and fresh, no tears or bends.
Rocket mail USA earth satellite Schmiedl 1962