Re: Cleaning corrosion
don't use a toothbrush, if you must, before you let a pro look at it. try a q-tip with tarn-x. just be careful not to get the pads wet! they also make cloths for both silver and laquered horns that you can geltly rub some stain or tarnish away. but first if the horn is worth anything, let a pro help, you could do more damage than good.