SCG10359 - 🇦🇷 Argentina 1960 “Día de las Naciones Unidas” Airmail – Overprinted Semi-Postal (20+10p)A striking 1960 Argentine airmail semi postal issued for United Nations Day, 24 October, featuring the engraved scene El Fuerte. This special release stamp carries a bold black overprint marking the national observance of UN Day. Printed by the Casa de Moneda de la Nacin, it showcases classic mid century Argentine engraving and is popular among collectors of UN, historical architecture, and Latin American philately. A fine example for any thematic or