Lot 147
1935 March 6 and March 21, Katwijk aan Zee Flown Rocket Covers. Lot of two different covers, one with a blue perf rocket stamp tied by a red flight handstamp and signed by rocketeer K. Roberti in blue ink. The other has a reddish purple perforated rocket stamp tied by a red flight handstamp (rocket P.13), with a violet flight cachet alongside. This cover is signed by rocketeer K. Roberti in red ink. Only 600 of the first cover and 492 of the second cover, were flown. E-Z No. 5C1, 6C1, 1996 cat. = $140.
Estimated Value $100 - 150.
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| Realized $75 |
