2 Zlotys 30. rocznica Czerwca '76

June 1976 saw workers in Radom and Ursus rise against sudden food price increases announced by the Gierek government — increases quietly withdrawn within 24 hours under the pressure of the strikes. The reprisals that followed were brutal enough to galvanize the intellectual opposition into forming KOR, the Workers' Defense Committee, which became a direct organizational precursor to Solidarity four years later.

Nordic gold — the aluminum-bronze alloy used across Polish commemorative bimetallics of this period — was chosen for its resistance to counterfeiting rather than any aesthetic consideration.