A very rare variety of the second and last vintage of brass gold coins.
Distinguished by the SAMPLE inscription placed low, at 4 o'clock, instead of at the top, above the wreath. In Janusz Parchimowicz's "Polish Proof Coins 1949-1990" catalog, only 1 of the 8 layouts presented had the inscription low.
Small, light scratches at the numeral of the denomination, otherwise no remarks.
Mintage of 100 pieces (for all varieties).
Brass, diameter 24.9 mm, weight 6.62 g