Traces of surface cleaning.
The first Polish coin minted for Red (Halitic) Ruthenia, annexed to Poland in 1340.
Obverse: crowned letter K in rosette, in rim: + REGIS 8 POLONIE K.
Reverse: crowned lion walking to the left, in the rim: + COIN [◦ D'OI ◦] RVCSIE ◦ K.
Silver, diameter 16.5 - 18 mm, weight 1.01 g.