If the coins are rusty. Try soaking in Evapo-Rust or one of the knock-offs to remove the rust without damaging the coins.
If the coins are rust stained go to the local pet shop and get a bag of ground corncob bedding and then buy a bottle of Nu-Shine car polish. Tumble the coins in the corncob media with a few healthy shots of Nu-Shine added.
The crushed walnut shell may be too aggressive for the softer metal of the coins.
If the coins are rust stained go to the local pet shop and get a bag of ground corncob bedding and then buy a bottle of Nu-Shine car polish. Tumble the coins in the corncob media with a few healthy shots of Nu-Shine added.
The crushed walnut shell may be too aggressive for the softer metal of the coins.