Lot no. 878

1921, Second Issue Landscape and Airplane surcharged "VALOR 10 CENTAVOS", 50 c. green with surcharge in type I tied by oval "SOCIEDAD COLOMBO ALEMANA CORREOS AEROS GIRADOT" to cover to Neiva, used in combination with Colombia 1917 ½ c. yellow-bistre as pair and single 2c. red tied by two-line "NAVEGACION AEREA NEIVA" and Neiva duplex, a rare and fine cover, certificate PF (1996)