This an example of Paul De Lamerie. and a very good reason to keep lead out of the studio if possible.(and ofcouse for your own health) To me it is interesting how silver seems to be softer over time. I have a theory, the more a silver object is handled by human hands the softer it becomes. When you have a museum quality object to work upon, it is best to do the least amount of work on it as possible. Thinking this through is important. No need to rush on a very valuable piece.