Series: Outstanding Persons of Ukraine
The coin is devoted to mathematics and mechanics, academician of the St. Petersburg Academy of Sciences from 1901 Lyapunov Alexander Mikhailovich (1857 - 1918), whose works relate to celestial mechanics, mathematics, physics and probability theory.
year of issue: 2007
Circulation: 35000 pcs,
Metal: nickel silver,
Weight 12.8 grams.