Stamps of Oman, 12 base month
1 to 50 of 211
postage
1952, Dec 5 1952 issue ovpted on stamps of Great Britain wmk. Tudor crown & E2R (no perf info) (10 stamps)
1975, Dec 27 International Women's Year issue wmk. crown & CA spiral p. 14
| - | 75b | multi | — | — | ||
| - | 150b | multi | — | — |
1976, Dec 18 National Day 1976 issue p. 14.5
| - | 25b | multi | — | — | ||
| - | 40b | multi | — | — | ||
| - | 75b | multi | — | — | ||
| - | 150b | multi | — | — |
1979, Dec 11 Armed Forces Day 1979 issue unwmk p. 11.75
| - | 40b | multi | Military Horseman | — | — | |
| - | 100b | multi | Military Parachutists | — | — |
1980, Dec 11 Armed Forces Day 1980 issue
| - | 150b | multi | sultan & patrol boat | — | — | |
| - | 750b | multi | Military Horsemen | — | — |
1981, Dec 1 Armed Forces Day 1981 issue
| - | 100b | multi | sultan & planes | — | — | |
| - | 400b | multi | — | — |
1982, Dec 11 Armed Forces Day 1982 issue p. 13.5x14
| - | 50b | multi | artillery | — | — | |
| - | 100b | multi | mounted band | — | — |
1983, Dec 11 Armed Forces Day 1983 issue p. 13.25x13.75
| - | 100b | multi | soldiers | — | — |
1984, Dec 5 16th Arab Scouts Conference issue p. 14.25
| - | 50b | multi | — | — | ||
| - | 50b | multi | — | — | ||
| - | 130b | multi | — | — | ||
| - | 130b | multi | — | — |
1984, Dec 11 Armed Forces Day 1984 issue p. 13.5x14
| - | 100b | multi | — | — |
1985, Dec 11 Armed Forces Day 1985 issue p. 13.25x13.75
| - | 100b | multi | — | — |
1985, Dec 15 marine life 1985 issue - marine life (1985 Oman) (5 stamps)
| - | 20b | multi | Chaetodon collaris, p. 11.5x11.75 | — | — | |
| - | 50b | multi | Chaetodon melapterus, p. 11.5x11.75 | — | — | |
| - | 100b | multi | Chaetodon gardineri, p. 11.5x11.75 | — | — | |
| - | 150b | multi | Scomberomorus commerson | — | — | |
| - | 200b | multi | Palinurus homarus | — | — |
1985, Dec 15 Frankincense Tree Production issue p. 13.25x13.75
| - | 100b | multi | Frankincense Trees of Oman | — | — | |
| - | 3r | multi | Frankincense Trees of Oman | — | — |
1987, Dec 23 15th Anniversary of Royal Omani Amateur Radio Society issue p. 13.25x13
| - | 130b | multi | — | — |
1989, Dec 18 10th Supreme Council Session of Arab Co-operation Council issue p. 12.75x12.25
| - | 50b | multi | — | — | ||
| - | 50b | multi | — | — |
1991, Dec 11 Armed Forces Day 1991 issue p. 14.25
| - | 100b | multi | — | — |
1993, Dec 8 Dolphins and Whales issue - dolphins and whales (1993) p. 14.75
| - | 100b | multi | Lagenorhynchus acutus, Megaptera novaeangliae | — | — | |
| - | 100b | multi | Delphinus delphis, Physeter macrocephalus | — | — |
1993, Dec 8 Dolphins and Whales - White Frame issue - dolphins and whales (1993) (no perf info)
| - | 100b | multi | Lagenorhynchus acutus, Megaptera novaeangliae | — | — | |
| - | 100b | multi | Delphinus delphis, Physeter macrocephalus | — | — |
1994, Dec 7 50th Anniversary of ICAO issue p. 13.5x13.75
| - | 100b | multi | — | — |
1994, Dec 28 250th Anniversary of Al-Busaid Dynasty issue p. 11.75
| - | 50b | multi | — | — | ||
| - | 50b | multi | — | — | ||
| - | 50b | multi | — | — |
1 to 50 of 211