Image: Stamp of USSR 4309
Size of this preview: 426 × 599 pixels. Other resolutions: 171 × 240 pixels | 631 × 887 pixels.
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Description: Почтовая марка СССР 1974 г. № 4309. Советский математик И. Г. Петровский, на заднем плане — Московский государственный университет. Тираж — 3,75 млн экз.
Title: Stamp of USSR 4309
Credit: Собственная коллекция
Author: Министерство связи СССР. Рис. Е. Анискина.
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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