COLECCIÓN DE SELLOS POSTALES, LOTE DE 383, EN SU MAYORÍA EXTRANJEROS Y ALGUNOS ESTADOS UNIDOS, AÑOS 30 - 50
I saw a couple with dates in the 1930's (1931 & 1939). My best guess is they range from the 1930's to the 1950's. This could provide a wonderful experience for a younger collector who has an interest in history and stamp collecting.