Name: 125th Anniversary of the Birth of Russian Physicist P. N. Lebedev
Issue Quality: UNC
Metal: Cupronickel (copper-nickel)
Designation: Cu-Ni
Denomination: 1 ruble
Currency Unit: Ruble
Type (Strike): Commemorative
Year of Issue: 1991
Sculptor: A.A. Novichkov.
Artist: A.A. Kolodkin.
Diameter: 31 mm
Thickness: 2.3 mm
XF: 107875 ₽
AU: 227778 ₽
Reverse On the left side of the coin is a profile portrait of P. N. Lebedev. To the right of it, in two lines, are the dates '1866' and '1912', indicating the years of the scientist's life. Below the dates is the physical formula for light pressure. In the lower part are stylized images of physical instruments. At the top right, along the outer rim of the coin, is the circumferential inscription: P. N. LEBEDEV
Obverse In the upper part of the coin is the State Emblem of the USSR, encircled by a ribbon (15 turns), below it the letters 'USSR', slightly lower the denomination of the coin, the numeral '1', and below that the word 'RUBLE'. Near the edge of the lower part is the mint year '1990'.