Obverse
Imperial eagle above date
Lettering: POLSKA RZECZPOSPOLITA LUDOWA
1960
Reverse
The Key and Gears
Lettering: 10 ZŁ
PRÓBA
Extended information
Year
Denomination
Currency
Metal
Nickel
Krause catalog
KM# Pr68
Weight
13.2 g.
Diameter
31
mm.
Alignment
Medal ↑↑
Shape
Round
Edge
Reeded
