Lot 58
1936 June 4, Heyst Flown Covers. Lot of two similar covers, each with a violet printed "RBS June 1936" cachet, an orange "P31" flight cachet and signed by rocketeer K. Roberti in green. One cachet is marked "St(ep) No. 1" and the other "St(ep) No. 2" to indicate which rocket the cover flew on. Only 200 covers were flown. E-Z No. 8C1c (x2), 1996 cat. = $200.
Estimated Value $150 - 250.
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