German Reich 1934, sugar Rockets flight Thale, card franked by 6 Pf. Wagner, on face Raketenvignette 6A2b (color error olive / blue - from this are only 8 pieces recorded!) and reverse horizontal unperforated t_t_-b_che pair to 3 Mark (black / silver), black special cancellation "rocket assisted takeoff THALE / Harz Mountains", to Berlin, scarce Raketenbeleg.