Uruguay C413-C414 ad sheets, FDC

Uruguay C413-C414 ad sheets, FDC, $94.00. Michel 1359-1366 Bl.26-27. American Bicentennial 1976. Artigas Monument; Apollo spacecraft, astronauts; US and Uruguayan Declarations of Independence; Modern Aircrafr, Concorde; UN Secretaries General; Apollo-Soyuz spacecraft; George Washington, Artigas; Boiso Lanza, aviation pioneer, Flags. Issued in 1975.