Poland, People's Republic of Poland (1952-1989). Medal 1975, Brotherhood of Arms on the Guard of Peace and Socialism, 1410 Grunwald - 1945 Berlin, MMP 75/164, Paszkowycz 59/75, designed by Stanislaw Sikora, issuer: Ministry of National Defense, Warsaw, mintage 1000 pcs (reissued in 1978 - 200 pcs, 1984 - 500 pcs), Silver plated Bronze 100 x 80 mm, weight 288,12 g., Condition aUNC