1931, R. TILING / RAKETENFLUGZEUG (K) FTL 3 - FIRST GERMAN ROCKET MAIL on 15.04.1931; flown photo card with picture of a starting rocket on reverse, launched in Ochsenmoor am Dümer, adressed to his wife in Osnabrück; 188 pieces flown, no. 155; with cancellation Dielingen and special postmark (K) FTL 3; signature of R. Tiling, vf. Ellington-Z. 1C1. 6