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postage

1976, Dec 22 aircraft (1976 Mongolia) unwmk p. 12

-	80m	multi	Jak-6
-	1t	multi	Ju-13

airmail

1976, Mar 20 40th Anniversary of Mongolian Meteorological Office issue p. 12x11.5

-

60m

multi

1976, Mar 30 30th Anniversary of United Nations Educational, Scientific and Cultural Organization issue (no perf info)

-

4t

multi

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