Due to the natural deterioration of this type of material it requires a great deal of work and time to restore. We can repair cracks and dents. In cases of severely deteriorated parts, filling pits, repairing cracks and dents can be achieved by hand filling and polishing. We do not grind out the pits. This is the most difficult metal to refinish and your parts are only handled by experienced personnel. All pieces go through an acid copper plate and buffing process. This takes a great deal of time and is very labor intensive but results in the best possible finish. Sometimes parts may be too deteriorated to restore to perfect condition. You will be notified in such a case. We reserve the right to refuse orders that will not be satisfactory to us.