National Union of Mineworkers (NUM), Mayday 1991: Jobs Before Profits, 1991. Silkscreen poster produced and printed at CAP, Cape Town, to celebrate the acceptance of May Day as a public holiday by the Chamber of Mines. Artists: Probably Lionel Davis, Martin Stevens, Gabby Cheminais and others from the CAP Media Unit. Collection: CHR/UWC-Robben Island Museum Mayibuye Archives