| Issuer: Mongolia
Issue: 20th Anniversary of Philatelic Co-operation between Mongolia and Hungary Date: 8/10/1978 (1978 sheets) INCOMPLETE Block 1 (3, 1 x 3) 1, 1: 1.50t 2, 1: 1.50t 3, 1: 1.50t |
External links: Colnect 248527..y_and_Mongolia |
| Issuer: Mongolia
Issue: 20th Anniversary of Philatelic Co-operation between Mongolia and Hungary Date: 8/10/1978 (1978 sheets) INCOMPLETE Block 1 (3, 1 x 3) 1, 1: 1.50t 2, 1: 1.50t 3, 1: 1.50t |
External links: Colnect 248527..y_and_Mongolia |
