Stamps of Mongolia, 7 Jun 1979
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postage
1979, Jun 7 Development of Railways issue unwmk p. 12 (9 stamps)
| - | 10m | multi | Rocket, 1829 | |||
| - | 20m | multi | Adler, 1835 | |||
| - | 30m | multi | Lok, 1860 | |||
| - | 40m | multi | KB 4, 1931 | |||
| - | 50m | multi | ER-0-5-0, 1936 | |||
| - | 60m | multi | 2 TE 10 L, 1970 | |||
| - | 70m | multi | 16 M, 1963 | |||
| - | 80m | multi | Orleans | |||
| - | 1.20t | multi |
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