The Estonian mark (Estonian:Eesti mark) was the currency of Estonia between 1918 and 1927. It was initially equivalent to the German ostmark, which had been circulating alongside the Russian ruble since the German occupation. It was divided into 100 penns (in Nominative case: penn). It was replaced in 1928 by the Estonian kroon at a rate of 1 kroon = 100 marka.
Until 1919 there were also Russian rubles, German ostrubles and Finnish marks in circulation.
Estonian mark Wikipedia
Coins were issued in denominations of 1, 3, 5 and 10 marka between 1922 and 1926. The 1922 issues were struck in cupro-nickel whilst the later issues were in nickel-bronze.