Mongolja
Muri Bhalissa: Mongolja - Bolol tal-posta (1924 - 2024) - 1 bolol.
1973
Airmail - International Stamp Exhibition "IBRA '73" - Munich, Germany
15. April WM: Xejn Perforazzjoni: 12½
![[Airmail - International Stamp Exhibition "IBRA '73" - Munich, Germany, Tip ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Mongolia/Postage-stamps/0780-b.jpg)