Lot 19
1928 June 10, Graz, Flown Rocket Cover. Used with a triangular orange/black rocket stamp. This was a test flight for subsequent rocket trials. This was a balloon flight that carried the first mail sent into the stratosphere. At about 16km, rocketeer Schmiedl ignited a small rocket automatically. This was probably the first rocket flown into the stratosphere. Covers are known with either rectangular or triangular rocket stamps. Only 100 flown. E-Z No. 1C1, 1996 cat. = $600.
Estimated Value $500 - 650.
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| Realized $1,035 |
