Grand Duchy (1865-1917)
2.54g, 18.6mm, silver .750

Provisional Government (1917 Type 2)
2.54g, 18.6mm, silver .750

REPUBLIC
Pre WW II (1921-1940)
2.55g, 18.5mm, nickel

WW II (1940-1943)
2.55g, 18.5mm, copper

WW II (1943-1945)
2.25g, 18.5mm, iron

Monetary reform
5.5g, 25mm, aluminum bronze

Coin redesign
3.3g, 19.7mm, copper nickel
