Warsaw halfpenny from the vintage with the lowest circulation.
Mintage of only ~23 thousand (other vintages from 76 to 783 thousand).
Very rare also because of the variety - a narrow eagle tail, instead of the fan-shaped one typical of this vintage.
Almost 4 times higher valued by Berezowski.
In the Onebid archive, out of 14 listings of this vintage, not once in this variety.
