Quote:
Originally Posted by dizzyizzy  Copper turns brown...even lacquered. For example, the OLD Conn Coperion's, 12-B's, have bells of copper "mix", and even lacquered, they brown up over time. In fact, IF they're "rosey", they've been refurbished. |
True, with the nitro-cellulose lacquer used on vintage Conns. I suspect modern lacquers will keep copper untarnished as long as the lacquer is intact.