Poland
Third Republic of Poland (since 1989)
Av: Bust to right, KAROL / BEYER / *1818 / +1877, Rw: 150 / 1845 YEARS 1994 / obverse and reverse of a Mazovian coin of Ziemowit III / WARSAW / TOWARZYSTWA / NUMIZMATYCZNY, medal designed by Bohdan Chmielewski
silver-plated and oxidized tombak, 39.9 mm, 41.01 g, mintage of 50 pieces