Obverse
Crowned and mantled oval shield on breast
Lettering: I. B.
Reverse
Value, date
Lettering: 1 GROSZ POLSKI 1820
Extended information
Denomination
Currency
Metal
Copper
Krause catalog
C# 93
Ruler
Weight
2.8 g.
Diameter
20
mm.
Alignment
Medal ↑↑
Shape
Round
Edge
Plain