Stamps of Colombia, Apr of any year
251 to 272 of 272
airmail
1971, Apr 22 unwmk (no perf info)
| - | 1.30p | multi |
1971, Apr 29 10th Anniversary of the Death of Gilberto Alzate Avendano issue p. 14x13.5
| - | 1p | multi |
1972, Apr 20 7th World Orchid-growers' Congress issue p. 14.25x13.75
| - | 1.30p | multi |
1978, Apr 25 150th Anniversary of Antioquia University Law School issue p. 12
| - | 4p | multi |
1983, Apr 9 p. 12x12.75
| - | 25p | multi |
1987, Apr 10 100th Anniversary of National Mines Faculty of National University, Medellin issue p. 13.5x13
| - | 25p | multi |
1988, Apr 11 450th Anniversary of Bogota issue p. 12.25
| - | 70p | multi |
1989, Apr 3 International Coffee Organization issue p. 12
| - | 110p | multi |
1989, Apr 28 12th Habitat U.N. Conference on Human Settlements, Cartagena issue
| - | 100p | multi |
1990, Apr 10 2nd Iberian-American Theatre Festival issue
| - | 150p | multi |
1992, Apr 13 Copyright Protection issue
| - | 190p | multi |
1994, Apr 11 75th Anniversary of Colombian Air Force issue p. 14
| - | 300p | multi |
1995, Apr 25 50th Anniversary of FAO issue p. 13x13.5
| - | 750p | multi |
1995, Apr 27 25th Anniversary of Andres Bello issue p. 13.5x13
| - | 650p | multi |
1996, Apr 23 100th Anniversary of the Death of Jose Asuncion Silva issue p. 12
| - | 400p | multi |
1996, Apr 25 Providence Island issue p. 14
| - | 800p | multi |
1996, Apr 26 200th Anniversary of the Birth of Policarpa Salavarrieta issue
| - | 900p | multi |
1997, Apr 25 100th Anniversary of Colombian Cinema and the 53rd International Union of Film Archives Congress, Ca issue p. 12
| - | 800p | multi |
1998, Apr 7 50th Anniversary of WHO Safe Motherhood issue
| - | 2204p | multi |
1998, Apr 22 BOLIVARIANA '98 issue p. 14
| - | 1000p | multi |
1998, Apr 30 50th Anniversary of Organization of American States issue
| - | 1000p | multi |
postal tax
1940, Apr 25 (no wmk info) p. 12
| - | 5c | protection |
251 to 272 of 272