Letter 1746 Restoring Tarnish Finish to Copper Lamp -- I just cleaned an old copper lamp and want the old brown tarnished finish back. Any tips on how to speed up the brown tarnishing on copper? (I don't want the green tarnish finish.) Thanks! Peter Brodigan Getting a bronze cannon to tarnish ++ I am restoring an old bronze civil war cannon and the ammo box that goes with it. Once cleaned, I would like to speed up the aging effect. The cannon is bronze and the top of the ammo box is copper. Any suggestions on what I can do to speed up the tarnish effect on both? Thanks, Michael Adamson - Alpharetta, Georgia June 27, 2008 www.sciencecompany.com/patinas/patinaformulas.htm#index This is a site for metal artist to change colors it might be helpful micheal lamon - saint paul mn