bonumic

1 ruble — USSR (1990–1991) — Pyotr Lebedev

Y# 261

Obverse
Obverse
Reverse
Reverse

Photo: Numista
Non-commercial use only

Special facts

A rouble for the 125th anniversary of the physicist Pyotr Lebedev (1866–1912), who first measured the pressure of light. He proved the pressure of light on solids and then on gases, created Russia’s first school of physics at Moscow University, and the Physics Institute of the Academy of Sciences bears his name. He studied under the German physicist August Kundt.

About the period

The currency reform of 1961 was a 10-to-1 redenomination: from 1 January 1961 old money was exchanged for new money of one tenth the face value. The coins and banknotes of the 1961 pattern circulated until the end of the Soviet Union. More about the period “1961 Monetary Reform”, 1961 — 1991

Coins and banknotes of these years: 1990, 1991

Specifications

Currency
1 ruble = 100 kopecks
Issue type
Commemorative
Metal
Copper-nickel
Diameter
31.0 mm
Thickness
2.3 mm
Weight
12.8 g
Shape
Round
Orientation
Medal (↑↑)

Variants

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Year Mint Mintage Price Proof BU Details
1990 — — ≈ $370 — — Error date (1991→1990) + ☆
1991 — 2,150,000 ≈ $4 350,000 + + ☆
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