Mathematicians Topical Stamps and Covers - Russian Philately - Russian Stamps https://russianphilately.com/t/mathematicians Stamps of Empire, Zemstvos, USSR, Ukraine, Baltic States. Sun, 15 Mar 2026 13:43:00 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 1951 Sc 1541(2) Nikolay I. Lobachevsky Scott 1575 https://russianphilately.com/shop/1951-nikolay-i-lobachevsky Sat, 12 Aug 2023 13:51:06 +0000 https://russianphilately.com/?post_type=product&p=32439 1951. Nikolay I. Lobachevsky. Raster: Horizontal. Catalogs: Scott 1575, Standard Collection 1541(2), Michel 1584. Issued on: 1951. Perforation: line 12½. Printing: Photogravure. Face value: 40 Russian kopek.

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]]> 1951 Sc 1541(1) Nikolay I. Lobachevsky Scott 1575 https://russianphilately.com/shop/1951-lobachevsky Mon, 11 Jan 2021 18:18:00 +0000 https://russianphilately.com/?post_type=product&p=27675 1955. Nikolay I. Lobachevsky.
Catalogs: Scott 1575, Standard Collection 1541(1), Michel 1584.
Height: 33 mm.
Perforation: line 12½.

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]]> 1955 Sc 1544I Alexander O. Kovalevsky Scott 1569 https://russianphilately.com/shop/1955-alexander-o-kovalevsky Mon, 11 Jan 2021 14:11:45 +0000 https://russianphilately.com/?post_type=product&p=27660 1955. Alexander O. Kovalevsky.
Catalogs: Scott 1569, Standard Collection 1544I, Michel 1579.
Height: 32 mm.
Perforation: line 12½.

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]]> 1951 Sc 1548 Sofia V. Kovalevskaya Scott 1570 https://russianphilately.com/shop/1951-kovalevskaya Mon, 11 Jan 2021 14:06:10 +0000 https://russianphilately.com/?post_type=product&p=27654 1951. Sofia V. Kovalevskaya.
Catalogs: Scott 1570, Standard Collection 1548, Michel 1578.
Perforation: line 12½.

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]]> 1956 Sc 1548I Sofia V. Kovalevskaya Scott 1570 https://russianphilately.com/shop/1956-sofia-v-kovalevskaya Mon, 11 Jan 2021 14:02:44 +0000 https://russianphilately.com/?post_type=product&p=27649 1956. Sofia V. Kovalevskaya.
Catalogs: Scott 1570, Standard Collection 1548I, Michel 1578.
Height: 32 mm.
Perforation: line 12½.

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]]> 1955 Sc 1541I Nikolay I. Lobachevsky Scott 1575 https://russianphilately.com/shop/1955-nikolay-i-lobachevsky Mon, 04 Jan 2021 13:39:28 +0000 https://russianphilately.com/?post_type=product&p=27464 1955. Nikolay I. Lobachevsky.
Catalogs: Scott 1575, Standard Collection 1541I, Michel 1584.
Height: 32,6 mm.
Perforation: line 12½.

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]]> 1951 Sc 1540-1555 First printing. Famous Russian scientists Scott 1568-1583 https://russianphilately.com/shop/1951-scientists Wed, 17 Jun 2020 22:25:34 +0000 https://russianphilately.com/?post_type=product&p=24978 1951. Famous Russian scientists. First printing. Stamps of first and second issues have different size (usually 1 mm difference by height). For example, height of the first stamp of the set: first printing – 33m, second – 32mm. Feel free to ask us, if you don’t have a specialized catalog. Catalog numbers: Scott 1568-1583, Standard …

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]]> 1951 Sc 1540I-1555I 1955 Second printing. Famous Russian scientists Scott 1568-1583 https://russianphilately.com/shop/1951-famous-russian-scientists Thu, 14 Feb 2019 18:27:04 +0000 https://russianphilately.com/?post_type=product&p=18984 1955. Second printing. Famous Russian scientists. Stamps of first and second issues have different size (usually 1 mm difference by height). For example, height of the first stamp of the set: first printing – 33m, second – 32mm. Feel free to ask us, if you don’t have a specialized catalog. Catalog numbers: Scott 1568-1583, Standard …

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]]> 1951 Sc 1577 Mikhail V. Ostrogradsky Scott 1604 https://russianphilately.com/shop/1951-mikhail-v-ostrogradsky Thu, 14 Feb 2019 14:37:30 +0000 https://russianphilately.com/?post_type=product&p=18918 1951. Mikhail V. Ostrogradsky.
Catalog numbers: Scott 1604, Standard Collection 1577, Michel 1607, Yvert 1590.
Perforation: line 12¼.

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]]> 1957 Sc 1920A Leonard Euler Scott 1932 https://russianphilately.com/shop/1957-leonard-euler-variety Sat, 08 Dec 2018 02:53:07 +0000 https://russianphilately.com/?post_type=product&p=15349 1957. Leonard Euler.
Catalog numbers: Scott 1932, Standard Collection 1920A, Mi 1936A, Yt 1915.
Perforation: comb 12.5x12.

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