Date of issue: 5 April 1999.
Academician Kanysh Imantayevich Satpayev was a prominent scientist, and was the first President of the Academy of Science of Kazakhstan. By his genius and hard work K. I. Satpayev created and headed the school of geology and significantly influenced the development of geological science.
Averse: State Emblem of Kazakhstan against ornamental background; face value of the coin “20 TENGE”; legend in Kazakh “NATIONAL BANK OF KAZAKHSTAN”.
Reverse: portrait of academician Kanysh Imantayevich Satpayev; name of the coin in Kazakh “100 YEARS K.I. SATPAEV”; “1999” means the year of coinage.
Lateral surface is grooved.
Weight: 11,17 gr.
Diameter: 31 mm.
Mintage: 50 000.