Poland, Congress Kingdom, Alexander I, 50 zlotys in gold 1825, Warsaw mint, Jakub Benicke.
Gold, 9.80 g, 22.9 mm. Kopicki 2736 (R2); Plage 2; Parchimowicz 1050b.
Grade: Good XF, lustrous, small minor scratches.
The coin is very nicely preserved, lustrous, no traces of mechanical cleaning.