Colombia 709-712, C351-C354

$ 4.40

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Colombia 709-712, C351-C354, MNH, $6.00. Michel 884-891, Euros 7.00. Centenary of Colombian postage stamps, 1959. Stamp on stamp, Mail transportation by Mule, Boat, Train, Plane. Map, Pres. Mariano Ospina. Blocks of 4 - buy 4 sets (4). Pieces of 20 - buy 16 sets.