Stamps Year 1961

VI National Cong. of Engineers-1961
Herman Cudris Castañeda
Shield of Popayán.
Herman Cudris Castañeda
Bustard Hunt E: 1404-50 years of Spanish Aviation
Herman Cudris Castañeda
Industry
Mikel Cruz
Red quebracho / Schinopsis balansae
Mikel Cruz
Sunflower
Mikel Cruz
Sunflower
Mikel Cruz
Domingo Faustino Sarmiento (1811 - 1888)
Mikel Cruz
Domingo Faustino Sarmiento (1811 - 1888)
Mikel Cruz
General José de San Martín (1778 - 1850)
Mikel Cruz