Viser nu Colombia - Post-skatte frimærker. (1950 - 1959) - 11 frimærker.
25. maj VM: Ingen Perforeringer: 11
26. maj VM: 2 Gravering: American Bank Note Co. Perforeringer: 12
VM: 2 Gravering: American Bank Note Company Perforeringer: 12
1. maj VM: Ingen Gravering: Waterlow & Sons Ltd. Perforeringer: 12½
VM: 2 Gravering: American Bank Note Company Perforeringer: 12
10. juni VM: Ingen Gravering: Waterlow & Sons Ltd. Perforeringer: 12½
VM: Ingen Gravering: Talleres gráficos - banco de la república Perforeringer: 12½
2. maj VM: Ingen Gravering: De La Rue Perforeringer: 13
1. juni VM: Ingen Design: Mosdóssy Gravering: De La Rue Perforeringer: 13
2. juni VM: Ingen Design: Mosdóssy Gravering: Imprenta nacional de Austria Perforeringer: 11½