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