1 Ruble Mathematician N.I. Lobachevsky

Features

Issuer	Russia
Period	Russian Federation (1991-date)
Type	Non-circulating coin
Year	1992
Value	1 Ruble (1 RUR)
Currency	Ruble (1991-1997)
Composition	Copper-nickel
Weight	12.80 g
Diameter	31.00 mm
Thickness	2.30 mm
Shape	Round
Technique	Milled
Orientation	Medal alignment ↑↑
Demonetized	Yes
Number	N# 14589 Numista type number (https://numista.com)
References	Y# 321, Richard S. Yeoman, Arthur L. Friedberg; 2007. A Catalog of Modern World Coins : 1850-1964 (14th edition). Whitman Publishing Company, Atlanta, USA. And 1 more volumes. CBR# 5009-0005, Central Bank of Russia (https://www.cbr.ru/eng/cash_circulation/memorable_coins/coins_base/) Schön# 270 Gerhard Schön; 2018. Weltmünzkatalog / 20. Jahrhundert: 1901-2000 (46. Auflage). Battenberg Gietl Verlag, Regenstauf, Germany. And 2 more volumes.

Commemorative issue

The 200th Anniversary of the Birthday

Obverse

In the center of the disc, in the circle of dots - the Emblem of the Bank of Russia (two-headed eagle with wings down), under it to the right - the mint trade mark, along the rim – semicircular inscriptions divided by two fragments of ornament, on top – the denomination and year of issue: "ОДИН РУБЛЬ 1992" (ONE RUBLE 1992), at the bottom: "БАНК РОССИИ" (BANK OF RUSSIA).

Script: Cyrillic

Lettering:
ОДИН РУБЛЬ 1992г.
ММД
БАНК РОССИИ

Translation:
ONE RUBLE 1992
MMD
BANK OF RUSSIA

Engravers: A.A. Kolodkin, A.V. Grankin, A.A. Novichkov

Reverse

In the centre of the disc – the relief portrait of N.I. Lobachevsky with arms folded on the chest, along the rim – semicircular inscriptions, to the left: "Н. И. ЛОБАЧЕВСКИЙ" (N. I. LOBACHEVSKY), to the right - dates: "1792-1856".

Script: Cyrillic

Lettering: Н. И. ЛОБАЧЕВСКИЙ 1792-1856

Translation: N. I. LOBACHEVSKY 1792-1856

Engravers: A.A. Kolodkin, A.V. Grankin, A.A. Novichkov

Edge

Two inscriptions "ОДИН РУБЛЬ" (ONE RUBLE) divided by two dots.

Lettering: ОДИН РУБЛЬ • ОДИН РУБЛЬ •

Translation: ONE RUBLE • ONE RUBLE •

Comments

Nikolai Ivanovich Lobachevsky (1792-1856), a Russian mathematician, is known as the creator of non-Euclidean geometry. From 1827 to 1846 he used to be the Chancellor of the Kazan University. Lobachevsky's discovery of 1826 (published in 1829-1830), ignored by his contemporaries, was a breakthrough in the understanding of the nature of space, which for more than 2000 years had been based on Euclid's assumptions, and had a tremendous impact on the development of mathematical thinking. Lobachevsky wrote works on algebra, mathematical analysis, the probability theory, mechanics, physics and astronomy.

Date of issue: 01.12.1992

See also

• Birth anniversary
• Science

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