Mongolia
| Country: | Mongolia |
| Type: | Postage stamps |
| Series: | International student congress |
| Nominal: | 30 Mongolian möngö |
| Year: | 1967 |
| Size: | 36 x 46 mm |
| Perforation: | comb 12 |
| Mintage: | 500,000 |
International student congress
 International student congress |  International student congress 0.55$ |