Now showing: Oman - Postage stamps (1990 - 1999) - 186 stamps.
1. January WM: None Sheetsize: 50 Design: Mahmoud Roushdy Perforation: 12¾ x 12¼
![[The 5th Anniversary of Gulf Investment Corporation, type GN]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/GN-s.jpg)
![[The 5th Anniversary of Gulf Investment Corporation, type GN1]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/GN1-s.jpg)
1. January WM: None Sheetsize: 50 Design: Mahmoud Roushdy Perforation: 12¾ x 12¼
![[The 5th Anniversary of Gulf Investment Corporation, type GN1]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/GN1-s.jpg)
1. January WM: None Sheetsize: 50 Design: Mahmoud Roushdy Perforation: 12¾ x 12¼
![[The 5th Anniversary of Gulf Investment Corporation, type GN]](https://www.stampworld.com/media/market/5714/6183578-s.jpg)
1. January WM: None Sheetsize: 50 Design: Mahmoud Roushdy Perforation: 12¾ x 12¼
![[The 5th Anniversary of Gulf Investment Corporation, type GN1]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/GN1-s.jpg)
1. January WM: None Sheetsize: 50 Design: Mahmoud Roushdy Perforation: 12¾ x 12¼
![[The 5th Anniversary of Gulf Investment Corporation, type GN]](https://www.stampworld.com/media/market/9666/9857643-s.jpg)
24. March WM: None Sheetsize: 50 Design: Mahmoud Roushdy Engraving: Oriental Press. Bahrain. Perforation: 13
![[The 40th Anniversary of Airline "Gulf Air", type GO]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/GO-s.jpg)
24. March WM: None Sheetsize: 50 Design: Mahmoud Roushdy Engraving: Oriental Press. Bahrain. Perforation: 13
![[The 40th Anniversary of Airline "Gulf Air", type GO]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/GO-s.jpg)
22. April WM: None Sheetsize: 50 Design: Mahmoud Roushdy Perforation: 11¼ x 11¾
![[Omani Ophiolite Symposium, type GP1]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/GP1-s.jpg)
22. April WM: None Sheetsize: 50 Design: Mahmoud Roushdy Perforation: 11¼ x 11¾
![[Omani Ophiolite Symposium, type GP]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/GP-s.jpg)
30. April WM: None Sheetsize: 50 Design: Mohamed Bin Nizam Shah & Mahmoud Roushdy Perforation: 13
![[The 150th Anniversary of First Omani Envoy's Journey to U.S.A., type GQ]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/GQ-s.jpg)
30. April WM: None Sheetsize: 50 Design: Mohamed Bin Nizam Shah & Mahmoud Roushdy Perforation: 13
![[The 150th Anniversary of First Omani Envoy's Journey to U.S.A., type GQ]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/GQ-s.jpg)
5. May WM: None Sheetsize: 50 Design: Mahmoud Roushdy Engraving: Courvoisier. Perforation: 11½ x 11¾
![[Sultan Qaboos Rose, type GR]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/GR-s.jpg)
5. May WM: None Sheetsize: 50 Design: Mahmoud Roushdy Engraving: Courvoisier. Perforation: 11½ x 11¾
![[Sultan Qaboos Rose, type GR]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/GR-s.jpg)
5. May WM: None Sheetsize: 50 Design: Mahmoud Roushdy Engraving: Courvoisier. Perforation: 11½ x 11¾
![[Sultan Qaboos Rose, type GR]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/GR-s.jpg)
18. November WM: None Sheetsize: 2 Design: Mohamed bin Nizam Shah & Mahmoud Roushdy Perforation: 11¾
![[National Day, type ]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/0235-b.jpg)
18. November WM: None Sheetsize: 2 Design: Mohamed bin Nizam Shah & Mahmoud Roushdy Perforation: 11¾
![[National Day, type ]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/0235-b.jpg)
18. November WM: None Sheetsize: 2 Design: Mohamed bin Nizam Shah & Mahmoud Roushdy Perforation: 11¾
![[National Day, type ]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/0235-b.jpg)
18. November WM: None Sheetsize: 2 Design: Mohamed bin Nizam Shah & Mahmoud Roushdy Perforation: 11¾
![[National Day, type ]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/0235-b.jpg)
18. November WM: None Sheetsize: 2 Design: Mohamed bin Nizam Shah & Mahmoud Roushdy Perforation: 11¾
![[National Day, type ]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/0235-b.jpg)
18. November WM: None Sheetsize: 25 Design: Mohmoud Roushdy Perforation: 13¼
![[National Day and Industry Year, type ]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/0239-b.jpg)
18. November WM: None Sheetsize: 25 Design: Mohmoud Roushdy Perforation: 13¼
![[National Day and Industry Year, type ]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/0239-b.jpg)
18. November WM: None Sheetsize: 25 Design: Mohmoud Roushdy Perforation: 13¼
![[National Day and Industry Year, type ]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/0239-b.jpg)
18. November WM: None Sheetsize: 25 Design: Mohmoud Roushdy Perforation: 13¼
![[National Day and Industry Year, type ]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/0239-b.jpg)
18. November WM: None Sheetsize: 25 Design: Mohmoud Roushdy Perforation: 13¼
![[National Day and Industry Year, type ]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/0239-b.jpg)
18. November WM: None Sheetsize: 25 Design: Mohmoud Roushdy Perforation: 13¼
![[National Day and Industry Year, type ]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/0239-b.jpg)
11. December WM: None Sheetsize: 50 Design: Mohmoud Roushdy Engraving: Oriental Press. Bahrain. Perforation: 14¼
![[Armed Forces Day, type GX]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/GX-s.jpg)
29. January WM: None Sheetsize: 50 Design: Mohmoud Roushdy Perforation: 13½ x 13¾
![[Inauguration of Omani-French Museum, Muscat, type ]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/0242-b.jpg)
23. March WM: None Sheetsize: 50 Design: Mohmoud Roushdy Engraving: Oriental Press. Bahrain. Perforation: 14½
![[World Meteorological Day, type GZ]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/GZ-s.jpg)
23. March WM: None Sheetsize: 50 Design: Mohmoud Roushdy Engraving: Oriental Press. Bahrain. Perforation: 14½
![[World Meteorological Day, type GZ]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/GZ-s.jpg)
5. June WM: None Sheetsize: 50 Design: Mohmoud Roushdy Perforation: 13¼ x 14¼
![[World Environment Day, type HA]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/HA-s.jpg)
18. November WM: None Sheetsize: 50 Design: Mohmoud Roushdy Perforation: 13¼ x 13¾
![[National Day and Industry Year, type HD]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/HD-s.jpg)
![[National Day and Industry Year, type HE]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/HE-s.jpg)
5. January WM: None Sheetsize: 50 Design: Mohmoud Roushdy Perforation: 13¼ x 13¾
![[National Police Day, type HF]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/HF-s.jpg)
4. September WM: None Sheetsize: 50 Design: Mohmoud Roushdy Engraving: Aucun Perforation: 13¾ x 13¼
![[Census, type HG]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/HG-s.jpg)
3. November WM: None Sheetsize: 50 Design: Mohmoud Roushdy Perforation: 13
![[Navy Day, type HH]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/HH-s.jpg)
3. November WM: None Sheetsize: 50 Design: Mohmoud Roushdy Perforation: 13
![[Navy Day, type HH]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/HH-s.jpg)
18. November WM: None Sheetsize: 25 Design: Mohmoud Roushdy Perforation: 11¾
![[National Day and Youth Year, type HI]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/HI-s.jpg)
20. November WM: None Sheetsize: 50 Design: Mohmoud Roushdy Engraving: Paire Perforation: 12¾ x 13¼
![[The 61st Anniversary of Scouting in Oman and the 10th Anniversary of Sultan Qabus as Chief Scout, type HK]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/HK-s.jpg)
![[The 61st Anniversary of Scouting in Oman and the 10th Anniversary of Sultan Qabus as Chief Scout, type HL]](https://www.stampworld.com/media/catalogue/Oman/Postage-stamps/HL-s.jpg)