I personally don't clean coins but most people on here swear by acetone give it a bath.lol Dave Ps. Don't forget to rinse properly.
Acetone or isopropol(sp?) alcohol may work for you. Yours looks to have zinc rot though so it may be a lost cause. May I ask why it is special?
My belated condolences, Acetone will not react with the copper ( good), nor the zinc corrosion ( too bad) , but if it is any paint or resin ( other than epoxy), the acetone should work, Jim
HomeDepot. Nail polish remover is also made with xylene but it isn't pure enough I believe and will leave residue or something.
Uh...no, nail polish remover is either acetone or ethyl acetate. Xylene would more likely be paint remover.
Congratulations Joy. Grandkids are great. Spoil them and send them home. We have 13 grandkids and 17 great grandkids. I keep an excel spreadsheet to remember when to spoil them, and, to remember their names.
I'm trying to get them interested in coin collecting. But, they won't put the electronic stuff down long enough to see if they might like it.