Cuba 1952 - Sc 473, C50 (EDIFIL 476-77) - 1952 Queen Isabella stamps. Stamps issued to commemorate the 500th Anniversary of the birth of Queen Isabella of Spain (Isabel la Católica). These are unused, original gum, never hinged, margin blocks of 4. The 2012 EDIFIL does not price these as blocks of 4 but prices the individual stamps at € 9,- per set or € 36,- (US $ 47.00) for the four sets as singles. Scott prices them at US $ 8.00 per set or US $ 32.00 for the four sets as singles.