Stamps of Philippines, 11 base day
1 to 50 of 112
postage
1959, Jan 11 ovpted unwmk p. 11
| X | 1c on 5c | crimson | Marcelo del Pilar |
1971, Jul 11 World Congress of University Presidents issue ovpted wmk. Harrison & Sons, London
| X | 5s on 6s | multi |
1972, Apr 11 4th Asian Pacific Congress of Gastroenterology issue unwmk p. 12.75x13
| X | 20s | ultra & multi | GI tract diagram |
1972, Dec 11 College of Pharmacy 60th issue p. 12.5x13.5
| X | 5s | multi | college & university emblems | |||
| X | 10s | multi | college & university emblems | |||
| X | 30s | multi | college & university emblems |
1977, Sep 11 Marcos 60th issue wmk. RP KK p. 12.5
| X | 30s | multi | Ferdinand Marcos | |||
| X | 2.30p | multi | Ferdinand Marcos |
1982, Sep 11 65th Anniversary of the Birth of President Ferdinand Marcos issue unwmk (no perf info)
| - | 40s | multi | ||||
| - | 3.20p | multi |
1983, Jul 11 25th Anniversary of National Science and Technology Authority issue
| - | 40s | multi | w. unwmk | |||
| - | 40s | multi | w. unwmk | |||
| - | 40s | multi | w. unwmk | |||
| - | 40s | multi | w. RP KK |
1987, Aug 11 Exports issue unwmk p. 13x12.75
| - | 1.00p | multi | ||||
| - | 2.00p | multi |
1987, Oct 11 p. 12.75x13
| - | 1.00p | multi | Brigadier-General Mateo M. Capinpin |
1987, Nov 11 400th Anniversary of Dominican Order in Philippines issue (no perf info)
| - | 1.00p | multi | ||||
| - | 4.75p | multi | ||||
| - | 5.50p | multi |
1988, Mar 11 Insects issue p. 12.75x13
| - | 1.00p | multi | Vesbius purpureus | |||
| - | 5.50p | multi | Campsomeris aurulenta |
1989, Jun 11 Supreme Court issue p. 14
| - | 1.00p | multi |
1995, Aug 11 Adoption of the Philippine Eagle as National Bird issue
| - | 16p | multi | Pithecophaga jefferyi |
1995, Aug 11 ASEAN Environment Year issue
| - | 2p | multi | Tarsius syrichta | |||
| - | 2p | multi | Cervus alfredi | |||
| - | 6p | multi | Chelonia mydas | |||
| - | 6p | multi | Pithecophaga jefferyi |
1996, Nov 11 100th Anniversary of the Birth of Eugenio Perez issue
| - | 4p | multi | Eugenio Perez |
1997, Dec 11 International Year of the Reef issue
| - | 8p | multi | ||||
| - | 16p | multi |
1999, Jan 11 100th Anniversary of Declaration of Philippine Independence e issue (10 stamps)
| - | 6p | multi | ||||
| - | 6p | multi | ||||
| - | 6p | multi | ||||
| - | 6p | multi | ||||
| - | 6p | multi | ||||
| - | 6p | multi | ||||
| - | 6p | multi | ||||
| - | 6p | multi | ||||
| - | 6p | multi | ||||
| - | 6p | multi |
1999, May 11 marine life (1999 Philippines) (7 stamps)
2003, Sep 11 100th Anniversary of the Birth of Cornelio Villareal issue
| - | 6p | multi | Cornelio Villareal |
2004, Oct 11 Christmas 2004 issue p. 14.25
| - | 6p | multi |
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