Reverse Inscription in Finnish '1 PENNI' (1 Penni) in two lines, with the mint year '1917' below. Around the edge along the rim are elements in the form of denticles.
Obverse At the center is a double-headed eagle with wings spread, holding an orb in its right talon and a scepter in its left. On its chest is the crowned coat of arms of Finland, framed by a chain. Denticles along the rim.