6th International Pharmaceutical Congress, Prague

    Czechoslovakia  1971.09.20

    In issue: Stamp(s): 6   

    Printing: engraving and intaglio, on light yellow paper

  • Number by catalogue:  Michel: 2028   Yvert: 1875   Scott: 1777  

    Perforation type: 11 ¾x11 ¼

    Subject:

    2,4 crowns. The image of a flower of a Henbane*, a mortar and a medical manual mill

     


  • Number by catalogue:  Michel: 2026   Yvert: 1873   Scott: 1977   Gibbons: 1982  

    Perforation type: 11 ¾x11 ¼

    Subject:

    1,2 crown. Valeriana officinalis, medical mortars (presumably the 18th century).