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postage
1981, Nov 18 11th National Day issue unwmk p. 11.75
| - | 300b | multi | sultan & map of Oman | — | — |
2005, Dec 7 Al-Khanjar A\'Suri issue (no perf info)
| - | 300b | multi | — | — |
2008, Dec 29 29th Session of the GCC Supreme Council issue imperf
| - | 300b | multi | — | — |
2009, Dec 19 19th Arabian Gulf Cup b issue
| - | 300b | multi | — | — |
2016, Nov 18 46th National Day issue (no perf info)
| - | 300b | multi | — | — |
2019, Nov 16 Oman's Message of Islam issue p. 13
| - | 300b | multi | — | — |
2020, Jul 13 Cultural Heritage - Maidan Musical Instruments issue (no wmk info) (no perf info)
| - | 300b | multi | — | — |
2021, Mar 9 80th Anniversary of the Al-Saidia School - Muscat issue
| - | 300b | multi | — | — |
2021, May 29 Tribute to Nurses and Midwives issue
| - | 300b | multi | — | — |
2021, Dec 7 Historic Personalities of Oman issue
| - | 300b | multi | — | — |
2022, Jan 18 Expo 2020 - Dubai issue
| - | 300b | multi | — | — |
2022, Mar 28 10th Anniversary of the Royal Opera House, Muscat issue
| - | 300b | multi | — | — |
2022, Jul 21 Date Varieties of Oman issue
| - | 300b | multi | — | — | ||
| - | 300b | multi | — | — |
2022, Sep 18 Freshwater Fish of Oman issue - Freshwater Fish of Oman
| - | 300b | multi | Cyprinion muscatense | — | — |
2022, Dec 11 Armed Forces of Oman issue
| - | 300b | multi | — | — |
2022, Dec 26 National Pavilion of the Sultanate of Oman La Beinalle di Venezia issue
| - | 300b | multi | — | — |
2023, May 30 Astronomical Views over Oman issue
| - | 300b | multi | — | — | ||
| - | 300b | multi | — | — | ||
| - | 300b | multi | — | — | ||
| - | 300b | multi | — | — |
2023, Sep 1 50th Anniversary of the Muwasalat Public Transport Company issue
| - | 300b | multi | — | — |
2023, Dec 28 Oman-Saudi Arabia Direct Highway Opening issue
| - | 300b | multi | — | — |
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