Stainless Steel Jewelry Shot

and with jacrispies

To the Forum.

You might do something like this with metal detecting finds that are covered in dirt and corrosion, but otherwise, a jewellery polisher is going to make a coin look much, much worse. It will look... well... polished. A polished coin might look shiny, but it will also be quite badly worn, both from original circulation (assuming it was a well-circulated coin) and from additional wear imparted by the polishing unit - and collectors know that worn coins aren't supposed to look shiny.

Try an ultrasonic for the lite dirt. After that, I would take it to a pro.

Also, I have heard of bigger 5-star hotels in New York, up until the 1980s, still had a man who washed coins for the ladies. That way their white gloves would not get dirty from the coins.