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Lot# 627 - Auction 227-233

  • Lot# : 627 Collections/lots worldwide

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    Netherlands 1935/36: Rocket experiments by Karl Roberti, lot seven envelopes fired with diff. rockets in between May 9th, 1935 and June 4th, 1936, some duplication, in addition a later card from an experiment made by the Nederlandsche Ruimtevaart Studio in 1946 EZ = $ 400/Hopferwieser = € 740.
    Starting bid : 200 CHF
    Hammer price : 200 CHF