Stamps of Colombia, 28 base day
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postage
1950, Dec 28 unwmk
| - | 5c | bl | farm, p. 11.75 | |||
| - | 5c | blgrn | farm, p. 11.75 | |||
| X | 5c | red & buff | farm |
1950, Dec 28 wmk. wavy lines & C multiple p. 12x12.5
| - | 5p | grn | arms Bogota |
1950, Dec 28
| - | 10p | redorg | arms of Colombia |
1955, Jan 28 Marti 100th issue unwmk p. 13.5
| - | 5c | dpcar | Jose Marti |
1955, Sep 28 Rotary 50th issue p. 12.5
| X | 5c | ultra | Bolivar's country estate |
1956, Dec 28 Javier Pereira issue p. 12
| X | 5c | bl | Javier Pereira |
1959, Jul 28 1959 surcharges issue
| - | 10c | on 3c (18) | ||||
| - | 30c | Jorge Eliecer Gaitan, w. unwmk, p. 12.5x13.5 | ||||
| - | 2p | on 1p (116) |
1960, May 28 8th Pan-American Highway Congress issue unwmk p. 11
| - | 10c | bl & grn | ||||
| - | 20c | multi | Pan American Highway through Colombia |
1962, Jun 28 OAS 70th issue p. 13
| X | 25c | |||||
| - | 2.50p | — | — |
1962, Aug 28 p. 12
| X | 10c | St Isidro redrawn |
1962, Sep 28 Completion of Colombia Atlantic Railway issue p. 13x12.5
| X | 10c | multi | Railroad Map of Colombia |
1970, Oct 28 St. Teresa of Avila's Elevation to Doctor of the Universal Church issue p. 13.5x14
| - | 2p | multi | St Theresa |
1975, Sep 28 Rafael Nuñez 150th issue p. 13.75x14
| - | 1.10p | multi | Rafael Nuñez |
1980, Nov 28 11th National Games issue (no wmk info) (no perf info)
| - | 5p | multi | — | — |
1982, Jul 28 Country Flowers issue - Country Flowers unwmk p. 12 (10 stamps)
| - | 7p | multi | ||||
| - | 7p | multi | ||||
| - | 7p | multi | ||||
| - | 7p | multi | ||||
| - | 7p | multi | ||||
| - | 7p | multi | ||||
| - | 7p | multi | violet bouquet | |||
| - | 7p | multi | ||||
| - | 7p | multi | ||||
| - | 7p | multi |
1982, Sep 28 400th Anniversary of the Death of St. Theresa of Avila issue
| - | 5p | multi |
1984, Sep 28 Marandua, City of the Future issue
| - | 15p | multi | Marandua | |||
| - | 30p | multi |
1987, Jul 28 150th Anniversary of the Birth of Jorge Isaacs issue
| - | 70p | multi | Jorge Isaacs |
1990, Mar 28
| - | 60p | multi | Espeletia hartwegiana |
1990, Aug 28 p. 14
| - | 70p | multi | Ceroxylon quindiuense |
1991, Mar 28 p. 12
| - | 70p | multi | Miraculous Christ, Buga |
1996, Oct 28 30th Anniversary of Founders Theatre issue p. 14
| - | 4000p | multi | "Theatre Curtain" - detail, Guillermo Va… | |||
| - | 4000p | multi | "Theatre Curtain" - detail showing Settl… |
2000, Sep 28 50th Anniversary of World Meteorological Society issue
| - | 1000p | multi |
2006, Dec 28 America 2006 issue p. 12.25
| - | 5000p | multi | ||||
| - | 5000p | multi |
2007, Jun 28 El Espectador newspaper 120th issue p. 12.5
| - | 4500p | multi | — | — | ||
| - | 4500p | multi | — | — |
2008, May 28 4-72 Postal Network of Colombia issue (no perf info)
| - | 2100p | multi |
2010, Jan 28 Famous People of Colombia issue - Famous People of Colombia p. 14 (5 stamps)
| - | 4000p | multi | Mercedes Abrego | — | — | |
| - | 4000p | multi | Gerardo Molina R | — | — | |
| - | 4000p | multi | Virginia Gutierrez | — | — | |
| - | 4000p | multi | Maria Mercedes Carranza | — | — | |
| - | 4000p | multi | Gonzalo Arango | — | — |
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