Soviet coin 1 rouble 1991 Lebedev coin value

The image of this coin is simply an example of Soviet coin 1 rouble 1991 Lebedev type coinage.
Cost approximate and valid for common coin only (without rare varieties).
I do not buy or sell coins - this is just a catalog.

Union of Soviet Socialist Republics - USSR (1922-1991)

Monetary system - Ruble = 100 kopecks
Type - commemorative coin: 125 years since the birth of physicist Pyotr Lebedev

Copper-Nickel
Diameter - 31.0 mm.
Weight - 12.80 gram

Years of minting
1991

Reverse:
Half-length portrait to the right, light pressure formula to the right, experimental setup below
Legend: П.Н.ЛЕБЕДЕВ (P.N.LEBEDEV) / 1866-1912

Obverse:
State emblem of the USSR
Legend: СССР 1 РУБЛЬ (USSR 1 ROUBLE) 1991

Edge: Inscription "ОДИН РУБЛЬ • ОДИН РУБЛЬ •" (ONE ROUBLE)

Krause catalog number - Y#261

Value of the coin in the condition "UNC" - 1-2 USD