Un-lacquered products will naturally age through oxidization. Polished Brass items will need to be maintained at regular intervals if you would like to keep the original quality & finish, especially if being used externally or in high moisture areas (bathrooms etc). A monthly polish will suffice in these situations & will be enough to maintain the quality finish. Alternatively, the brass can be left to age through oxidization & will gain a darkened patina over the years. The Antique Brass finish has been treated to speed up this natural tarnishing & ageing process which produces th...