Poland 1366-1368 blocks/4 labels left & right (6)

Poland 1366-1368 blocks of 4 with labels at left & rights (6), MNH. Michel 1632-1634 zf, Euros 10.00. 1965. Struggle and martyrdom of the Polish people, 1939-1945, WW II. Memorials: Plaszow, Kielce Chelm.