Coprion questions

[OldWetOneCanoli]

I just picked up two Conn 18H horns. One for playing and one for parts. Are Coprion bells lacquered, and is there a way to buff out scratches? I am thinking about buffing the parts bell for practice (it has a lot of dents) with a cotton buffing wheel or a white tee shirt. Other than the scratches and a few minor dings, the playing horn bell section is a beauty that I would hate to damage the finish.

[BGuttman]

Coprion is pure copper deposited electrolytically. It tarnishes as easily as brass. It is usually buffed and lacquered. Copper can be buffed exactly the same way as brass, but it's a bit softer and you have to be careful about dents and deformation.