
Note the Nickels in the photo. All were at one time polished to a mirror state. Actually all these coins were at one time corroded, stained, polished, pitted, etc. So all were placed in a glass jar, Laquer thinner added. Then replaced with Alcohol. This was eventually also replaced with Acetone. A not to long ago seb site stated how Acetone and water in the Sun will make all kinds of things happen to Copper so I placed this last attempt on a picnic table in the Sun for seveal weeks. Eventually all coin were and still are on the inside of a kitchen window sill. The Nickels have now lost that mirror finish. The Large Cent and
Indian cent have turned RED. One
Lincoln Cent, tunrned dark for some reason. The SLQ came out the best and it too was polished but not as much.
JUST remember that all such coins are now considered cleaned.