State Emblem of People's Republic of Poland - crownless eagle with head turned left and outstretched wings, flanked by year 19-79. Mintmark under talons.
Around POLSKA RZECZPOSPOLITA LUDOWA, below Zl 2000 Zl
Description reverse
Profile of Marie Curie facing left, to the right Ra - symbol of Radium, from which alpha and beta particles and gamma rays are emitted, intefering with her effigy
MARIA SKlODOWSKA CURIE