International Stamp Exhibition "Interphil '76" - Philadelphia, U.S.A. 1976
Now showing: Mongolia - Postage stamps - 1976 - International Stamp Exhibition "Interphil '76" - Philadelphia, U.S.A. - 1 stamps.
1976
International Stamp Exhibition "Interphil '76" - Philadelphia, U.S.A.
3. May WM: None Perforation: 11½ x 12½
![[International Stamp Exhibition "Interphil '76" - Philadelphia, U.S.A., type ]](https://www.stampworld.com/media/catalogue/Mongolia/Postage-stamps/0990-b.jpg)