Circulating Piece.
The rarest vintage of the 1/3 thaler of the Principality with a mintage of less than 130,000, where the second lowest mintage oscillates around 1 million pieces!
On the reverse: initials IS of Jan Stockman.
Obverse: bust of the prince to the right, in the rim the legend:
FRID-AVG-REX SAX.DVX VARSOV;
Reverse: crowned coat of arms of the Duchy of Warsaw on two palm branches, date 18-10 at the top, initials I.-S. at the bottom and the denomination 1/3 TALAR;