Glossary of Russian currency
== Decimal == The decimal currency in Russia was introduced by Peter the Great during his monetary reform Names of many of the coins are traced from older times. Kopeck Denga, polkopeiki = 1/2 kopeck Polushka = 1/2 denga Altyn = 3 kopeck Grivennik = 10 kopeck Pyatialtynny = 15 kopeck coin literally "5 altyn coin" Dvugrivenny = 20 kopeck, literally "two-grivennik coin" Half-poltina (polupoltina, polupoltinnik = 1/2 poltina = 25 kopeck Poltinnik, Poltina = 1/2 ruble or 50 kopeck Ruble = 100 kopeck Chervonets = 10 rubles == Old currency == Grivna, cf.
Source: Wikipedia — Glossary of Russian currency (CC BY-SA 4.0)