Cleaning PVC Damage On Bronze Coins

Thanks for the input everyone!

NumisMattyUk- interesting. I have never tried to smell it. hmmm

Watering plants will get you very little growth. Plants usually need the garbage in tap water but not the salts from a water softener.


Not sure but possibly if the PVC is brown or black it may have been made in a Mars Candy factory.


Sounds like the coin is getting tired of being played with and sends out that color to make you irritated.
That is odd though. Are you sure it's not the lighting? Also, if distilled water and Acetone will not remove a contamination on a coin, additional more sever solutions will probably do more damage. The contamination sounds like it is now part of the coin and removing it will leave gauges or hollowed out places where that contamination was.
So further attempts to remove any contaminations depends on the actual value of any coins. I've had fantastic luck with jewlery cleaners from Walmart in removing fingerprints from Copper coins. HOWEVER, those were rather recent prints I would suspect since prints on coins for a long time usually etch themselves into the coins.
Your now at the point of trying all those items people try when the value of a coin is of no concern. Lemon Juice, Tomato Juice, Olive Oils, Vinegar and just about anything else around the kitchen. Just remember if the coins start to smell good, don't eat them.