Rare vintage of the first of two types of 25 złoty from the Kingdom of Poland.
Obverse: head of Alexander I facing right
ALEXANDER I • CESARZ SA • W • ROS • KRÓL POLSKI *
Reverse: Russian-Polish eagle, under the paws the initials IB and the date 1818
* 25 ZŁOT • POLSK • 52 Z GRZ • CZ • KOL *
Gold, diameter 19 mm