1934, sugar Rockets flight Thale, card franked with 6 Pfg Wagner, on face rocket vignette 6 A2 b (colour error olive / blue - from this are only 8 pieces known! ) and reverse horizontal unperforated t_te-b_che pair to 3 Mark (black / silver), black special cancel \"rocket assisted takeoff THALE / HARZ\", to Berlin, rare rocket document. (6A2b,6A3) (Image 1) (Image)