Put the acetone in two small glass containers. Place the coin in the first acetone container and leave it in for a couple of minutes. Lift the coin with tweezers or such and rub the spot with a q-tip if needed. Repeat as necessary. Finally, rinse the coin in the second container of clean acetone. Any residual acetone will evaporate quickly. Make sure you follow all of the safety precautions for use of acetone and dispose of it responsibly when finished.
"Dipping" is not considered cleaning... -from PCGS website
Looks like a coin I've seen lately on eBay. The seller called it an error coin. A decent Far 6 but with issues.Given the number of such series coins appearing with distracting meter marks it simply joins a large family.
I had it on eBay as a lamination error. I had an offer but informed the seller that it was most likely a damaged coin. Seller still wanted it but I offloaded it for cheaper. I'm not a fan of problem coins. I didn't pay anything for it as it was a part of a large group lot I purchased. Thanks everyone for you help!