A nice piece of a typologically rare item.
Variety with the Slepowron coat of arms only on the reverse.
Obverse: in the pearl rim a royal bust in crown, armor and cloak, with the Order of the Golden Fleece, to the right, in the outer rim the legend:
[]ASIM-D G-REX-POL&SVE-M D L;
Reverse: denomination III, on its sides initials A-T, below coats of arms of the Crown and Grand Duchy of Lithuania, divided by a crowned shield with the coat of arms of the Snop of the Vasa dynasty, below legend in 4 lines:
1662/GROS-ARGE/TRIP-REGN/POL-ONI, below coat of arms of the Slepowron;