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Lot# 835 - Auction 284 - 290

  • Lot# : 835 Costa Rica

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    1926 (June 4): Waterlow Die Proof for Airmail 20 c. value, Imperforate in green (issued in ultramarine) and overprinted "WATERLOW & SONS LTD. / SPECIMEN" diagonally in black on card with file number, perforated example in the same unissued colour with security punch-hole and Specimen overprint; together with 20 c. ultramarine in an unused block of sixteen (4 x 4) all with security punch-hole (just one sheet existed thus - file number in margin and print date in pencil) and issued stamp unused, used in block of four and pair and covers (2).
    Starting bid : 150 CHF
    Hammer price : 550 CHF