A variant featuring an eagle with straight talons in the coat of arms.
A clearly legible, circulated example of an Insurrection triak with well-preserved details.
The only copper denomination struck by the National Government during the November Uprising.
Obverse: a crowned coat of arms bearing the emblems of the Crown and the Grand Duchy of Lithuania, with the legend in a semicircle above it:
KROLESTWO POLSKIE; beneath the shield, the initials K•G• of Karol Gronau—director of the Warsaw Mint from 1829 to 1834;
Reverse: within an oak wreath, the inscription 3/GROSZE/POLS•/1831;
