Tin-plate goods, before being polished, are scoured by being held against a revolving mop greased sufficiently for the purpose by contact with a tallow candle. Finish by polishing with a dry mop on which some Sheffield lime is placed. When polishing tinware, the mop should be run at a speed .just sufficient to cause it to stand out stiff; if the In the is run at too high a speed, the mop will remove some of the soft surface tin.