Poland / Lithuania, Zygmunt II August 1545-1572. Grosz in Polish type 1566, Tykocin mint with the Jastrzebiec coat of arms, Ivanauskas-Cesnulis 5SA9-5 (RRR), Kopicki 3284 (R5), Tyszkiewicz 12 mk, variety of legends L / LIT, Silver 22 mm, weight 1,7 g., Condition VF, grey patina, very rare type of coin with the coat of arms of Stanisław Myszkowski - Jastrzebiec next to the king's monogram on the reverse