Do you own silver coins that have grime or tarnish in their crannies? I sure do. Take a look at this pile of junk coins I bought from an Ebay seller.
As you can see, most of these coins are pretty tarnished. Here are the steps I take to clean up grimy coins.
Here we have 3 Walking Liberty half dollars. Notice the grime in the cracks.
First step is to heat up the coin to a dull red, and then quench it in water.
Here is the coin after pulling it out of the water. Lots of fire-scale; ready for pickling.
Next step is to drop the coin in a hot batch of Pickle.
The pickle will remove the fire-scale and leave a pristine white coin.
Next step is to use a brass wire bristle Dremel attachment to strip away the whiteness and reveal the prized shine.
Mark Unger has been called the Renaissance man by his peers for all of his successful pursuits on the job and in his spare time. Among other interests such as 3D printing, CNC milling, woodworking, and electronics, Mark follows the developments in Coin Ring Making.