The 150th Anniversary of Pulkovo Observatory 1989
Dabar rodoma: SSSR - Pašto Ženklai - 1989 - The 150th Anniversary of Pulkovo Observatory - 1 ženklai.
1989
The 150th Anniversary of Pulkovo Observatory
20. liepa WM: Niekas Popieriaus-dydis: 50 Dizainas: Yu. Kosorukov Perforacija: 11½
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