Silver medal (Dm. 36, 1 mm, 19, 76 g), 1931, from Karl Goetz, on the stratospheres flight from Prof. A. Piccard and Dr. P. Kipfer. Av: heads the scientist staggered to the right. Rev: balloon over Augsburg. Edge punch: Bavarian. Imperial Mint fine silver, Kienast 462, extremly fine to uncirculated.