Crown coinage, Halftorak, 1666, Kraków; Av: Crowned, five-field shield of coat of arms, at the bottom in the obverse inscription face value 3 in a plain shield, IO CAS D G - REX P M D L; Rw: Apple of reign, in it 60, on the sides of the apple abbreviated date 66, MONE NO (Ślepowron coat of arms) REG POL; Górecki K.66.1.a (F4), H-Cz. 2300 (R6), Kop. 1576 (R6), Kurp. (1649-1696) 76 (R7), Tyszkiewicz 40 mk; coin in very nice state of preservation, with great mint luster; a very rare type of half-track, the last minted in the history of the Republic.