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.
Mintage of 100 pieces (for all varieties).
Beautiful state of preservation.
Brass, diameter 25 mm, weight 6.70 g.
