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
Half-lenght bust of Duke Mieszko I facing 3/4 left, holding sword and cross. In front PRÓBA
MIESZKO I 960-992