OK, I know- give it time...so I just installed a sterling silver thumb-piece on a previously finished gun. The barrel is one that survived (internally) the fire that took out my shop so it has "patina". The thumb-piece is actually a piece of a recovered silver spoon from the same fire. It's now in the stock with silver nails and epoxy but annealing and bending the piece rubbed off most of it's "patina" so I buffed it. Now it looks out of place. Any suggestions besides "give it a few years"?
Brass Black - didn't touch it
Cold Blue- didn't touch it
Ammonia- didn't touch it
Kevin