Rocket Flights. 1934, Gerhard Zucker Flights ''Sussex-Downs'' (June 6), ''Scarp-Harris'' (July 28) and ''Isle of Wight'' (December 19), altogether four covers, two of ''Scarp-Harris'' with reversal two-line marking ''Damaged by First Explosion..'', one of which is partly burnt at top left; three franked by King George V definitives, one has meter postage, each one with semi-official rocket stamps, three have G. Zucker signature at left, arranged on 3 pages from a Collection, mostly VF, Est. $600-$700 (Image)