The 200th Anniversary of the Birth of P.L. Chebysev, 1821-1894 2021
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2021
The 200th Anniversary of the Birth of P.L. Chebysev, 1821-1894
20. May WM: None Sheetsize: 15 Design: Savina O. ; Kradyshev A. Perforation: 12 x 12½