The 9th Organization of Socialist States Postal Ministers Congress, Ulan Bator 1973
Sedaj prikazano: Mongolija - Poštne znamke - 1973 - The 9th Organization of Socialist States Postal Ministers Congress, Ulan Bator - 1 znamke.
1973
The 9th Organization of Socialist States Postal Ministers Congress, Ulan Bator
15. julij WM: Nič Perforacija: 11½ x 12
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