Denga

Four pre-reform dengi of the Novgorod Republic (novgorodki), 1420–1478.
A copper denga minted during the reign of Tsar Peter I in 1704.

A denga (Russian: деньга, pl. деньги, dengi) was a Russian monetary unit with a value latterly equal to 1⁄2 kopeck (100 kopecks = 1 Russian ruble). The denga was introduced in the second half of the 14th century during the reign of Dmitry Donskoy.