1920 1920s antique ateliers background belgian belgium bois card cazier charleroi clock clocks close close-up close-ups closeup closeups coal colliery company courcelles cut cut-out cut-outs cutout de du employee employees factory forges gilly hainaut heritage historic historical industrial industry machine machines marcinelle mine museum of old out outs patrimony province punch recorder saint-moulin time up ups vintage wallonia walloon white