Lot 50401 – 1925 & 1930, Two Post Office displays, incl. 1925 Red Cross and 930 Pro Union Ibero-Americana

1925 & 1930, Two Post Office displays, incl. 1925 Red Cross (printed by Waterlow) with Spanish postage and airmail sets and an example from each of the Colonies affixed, and display with 1930 Pro Union Ibero-Americana postage and airmail stamps, every stamp overprinted « MUESTRA » (Specimen) with some inverted on the 1930 display, very attractive items.