AUSTRALIA 1934,  Rocket Mail Cover 4 December 1934 SS Canonbar to Brisbane rocket mail cover. Conducted by the Queensland Air Mail Society. Stamped with special cachet in violet. First Australian Rocket Post. With purple SS Canonbar - Brisbane vignette on back. Includ stamps 1934 AUSTRALIA rocket mail 2 half-sheet of 2 (gum w/some tropical points). - BRISBANE - EZ1A1. The cover including Young's signature. VERY RARE