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postage
1966, Apr 29 1966 issue unwmk p. 14.5x13.5 (6 stamps)
| - | 30b | Sultans Crest & Nakhal Fort | — | — | ||
| - | 50b | Samail Fort | — | — | ||
| - | 1r | Sohar Fort | — | — | ||
| - | 2r | Nizwa Fort | — | — | ||
| - | 5r | Matrah Fort | — | — | ||
| - | 10r | Mirani Fort | — | — |
1970, Jun 27 1970 issue (6 stamps)
1971, Jan 16 sultanate issue ovpted (6 stamps)
1972, Jun 6 ovpted
| - | 25b on 1r | Sohar Fort | — | — |
1982, Nov 6 ITU plenipotentiaries conference issue
| - | 100b | multi | — | — |
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