Airmail - Postage Stamps Overprinted "OPS"- 6mm High & Surcharged 1984
现在展示： 圭亚那 - 公务邮票 - 1984 - Airmail - Postage Stamps Overprinted "OPS"- 6mm High & Surcharged - 1 邮票.
1984
Airmail - Postage Stamps Overprinted "OPS"- 6mm High & Surcharged
2. 四月 窗口管理器: 1 筛孔: 13½ x 13, 13½ x 14
![[Airmail - Postage Stamps Overprinted "OPS"- 6mm High & Surcharged, 类型 M17]](https://www.stampworld.com/media/catalogue/Guyana/Official-stamps/M17-s.jpg)
