Sheet metal defects typical of Principality issues.
The last gold coin of the Warsaw Principality, occasionally found on the market.
Obverse: bust of the duke to the right, in the rim legend:
FRID-AVG-REX SAX.DVX VARSOV;
Reverse: crowned coat of arms of the Warsaw Principality on two palm branches, date 18-14 at the top, initials I.-B. and the denomination 1/6 TALARA at the bottom;