20th Century Issues, Kingdom of Poland (1916-18), iron 20 Fenigom, 10 Fenigom and 1 Fenig, 1918FF, crown over eagle displayed, rev value (3- Gum.2583), fine. Republic of Poland (1918 -), 10 Zlotych, 1933, Jan Sobieski (KM(Y), 23), very fine 5 Zlotych, 1930 (KM(Y),19.1), poor; 5 Zlotych, 1933 (KM(Y), 21), fine; 5 Zlotych, 1934,Dilsudski (KM(Y), 28), about extremely fine; minor nickel and brass coins of the period 1923-39, 50 Groszy (3), 20 Groszy (2); 10 Groszy (3); 5 Groszy (5); 2 Groszy (2); Grosz (5), fine to very fine, a few better; coins issued under German occupation, 1939-45, struck in zinc from dies used for the 1923-39 issues, 20 Groszy (7), 10 Groszy (6), 5 Groszy, 1939, with centre hole, some fine, but most appear to be suffering from active corrosion