Coins, silver and copper from the local area. We started something new with this auction, using a Sigma metal testing machine for coins, rounds and slabs. We did not get all silver coins on the machine for this one, but where we did test we put a picture of the result with each. Trying something new to give everyone a better piece of mind in the purchasing process. We do know that no machine is perfect. Please let us know the positives or negatives of what we are trying to do or what you may know about this particular machine. Thanks!