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AUSTRIA, 1931, April 21, Rocket Flight (E-Z 9C1a; Hopferwieser FS-09b).
Regular price $1,500.00 USDRegular price -
AUSTRIA, 1935, December 21, Registering Rocket Flight (Hopferwieser FS-43).
Regular price $1,200.00 USDRegular price -
AUSTRIA, 1935, December 21, Rocket Flight N7 (Hopferwieser FS-44b)
Regular price $1,700.00 USDRegular price -
CUBA, 1939 Third Test Rocket Launch (E-Z 3C1; Hopferwieser AF-03a).
Regular price $900.00 USDRegular price -
GERMANY, 1931, April 15 Tiling Rocket Flight (E-Z 1C1; Hopferwieser RT-01)
Regular price $1,400.00 USDRegular price -
GERMANY, 1933, August 31 Zucker Herta Rocket Flight. Nice group of 3 covers: two pre-printed enveloppes and a postcard (Hopferwieser GZ-01b)GERMANY, 1931, April 15 Tiling Rocket Flight (E-Z 1C1; Hopferwieser RT-01) (Copy)
Regular price $600.00 USDRegular price
