Now showing: Oman - Postage stamps (1990 - 1999) - 22 stamps.
22. March WM: None Sheetsize: 50 Design: Mohamed bin Nizam Shah & Mohmoud Roushdy Perforation: 13½ x 13¾
![[World Water Day, type HO]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/HO-s.jpg)
16. April WM: None Sheetsize: 50 Design: Mohamed bin Nizam Shah Perforation: 13½ x 13¼
![[The 70th Anniversary of Muscat Municipality, type HP]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/HP-s.jpg)
29. August WM: None Sheetsize: 50 Design: Mahmoud Roushdy Perforation: 13½
![[The 100th Anniversary of International Olympic Committee, type HQ]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/HQ-s.jpg)
18. November WM: None Sheetsize: 40 Design: Mahmoud Roushdy Engraving: Paire Perforation: 13½
![[The 24th National Day and Year of Cultural Heritage, type HR]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/HR-s.jpg)
![[The 24th National Day and Year of Cultural Heritage, type HS]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/HS-s.jpg)
7. December WM: None Sheetsize: 50 Design: Mahmoud Roushdy Perforation: 13½ x 13¾
![[The 50th Anniversary of I.C.A.O., type HT]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/HT-s.jpg)
28. December WM: None Sheetsize: 60 Design: Mahmoud Roushdy Engraving: Courvoisier. Perforation: 11¾
![[The 250th Anniversary of Al-Busaid Dynasty, type ]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/0266-b.jpg)
| No. | Type | D | Color | Description |
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| 266 | HU | 50B | multicoloured | (100.000) | 1.10 | - | 0.55 | - | USD |
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| 267 | HU1 | 50B | multicoloured | (100.000) | 1.10 | - | 0.55 | - | USD |
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| 268 | HU2 | 50B | multicoloured | (100.000) | 1.10 | - | 0.55 | - | USD |
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| 269 | HU3 | 50B | multicoloured | (100.000) | 1.10 | - | 0.55 | - | USD |
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| 270 | HU4 | 50B | multicoloured | (100.000) | 1.10 | - | 0.55 | - | USD |
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| 271 | HV | 50B | multicoloured | (100.000) | 1.10 | - | 0.55 | - | USD |
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| 272 | HU5 | 50B | multicoloured | (100.000) | 1.10 | - | 0.55 | - | USD |
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| 273 | HU6 | 50B | multicoloured | (100.000) | 1.10 | - | 0.55 | - | USD |
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| 274 | HU7 | 50B | multicoloured | (100.000) | 1.10 | - | 0.55 | - | USD |
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| 275 | HW | 50B | multicoloured | (100.000) | 1.10 | - | 0.55 | - | USD |
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| 276 | HX | 50B | multicoloured | (100.000) | 1.10 | - | 0.55 | - | USD |
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| 277 | HY | 50B | multicoloured | (100.000) | 1.10 | - | 0.55 | - | USD |
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| 278 | HZ | 50B | multicoloured | (100.000) | 1.10 | - | 0.55 | - | USD |
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| 279 | IA | 50B | multicoloured | (100.000) | 1.10 | - | 0.55 | - | USD |
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| 280 | IB | 50B | multicoloured | (100.000) | 1.10 | - | 0.55 | - | USD |
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| 266‑280 | Block of 15 | 54.88 | - | 54.88 | - | USD | |||||||||||
| 266‑280 | 16.50 | - | 8.25 | - | USD |
28. December WM: None Sheetsize: 1 Design: Mahmoud Roushdy Perforation: Imperforated
![[The 250th Anniversary of Al-Busaid Dynasty, type XIB]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/XIB-s.jpg)
