Netherlands, 1928 Huygens Olympic Series “De Regentes” advertising postal stationery card
Official 5c postal stationery card (Geuzendam OL29) issued by Huygens Boekhandel to promote the 1928 Amsterdam Olympic Games. Part of “Serie A,” featuring “Discobolo IX” illustration and “Zwemmen” (swimming) theme with verse encouraging Olympic spirit. Used and addressed to Den Heer P. W. Broekman, Amsterdam.