And that is the key...it cleaned a coin and a cleaned coin loses its value and doesn't become a collector coin to most collectors. Speedy
Wrong!,It gets the dirt off! period.Speedy, send me one and end the issue, and you'll see in hand...........Regards, Mike.
It will go more than the dirt...Acetone does the same thing... It might not look it but if you rub it the coin is cleaned..that is a black and white issue...its cleaned. We can disagree on this because many do...but many agree with me...but in this case with PVC you must clean it someway and I suggest the best way...Acetone. BTW--I asked an Expert at a grading Co. about Acetone and cleaning and he agrees with what I've said...I know that doesn't matter much but its true. Speedy
I understand, Send me one of your dirty indians, and you can look at it and CANNOT TELL! any marks or anything, I make small parts at work and use a mantis microscope all day long and other inspection equipment, I look at close details more than anyone!!just send me a coin, than judge the prosses.
There is still green stuff on the coin. It is either PVC residue or verdigris. Acetone will dissolve the PVC - it will not remove verdigris. It may well loosen the verdigris so that you could pick off the top layers of the corrosion, but it won't completely remove it or stop it from continuing to corrode the coin. I have posted several times about a commercial product that will remove verdigris - you can buy it here BIOX
It doesn't matter how lightly a coin is cleaned, it's still cleaned. Microscopic particles of a coin are removed by any cleaning method. The top layers of a coin oxidize away and can never be replaced, it's best to keep a coin clean and tarnish free. The longer it sits and corrodes; the more damage will be done. A professional grader knows what a cleaned coin looks like and they have more experience detecting alterations than an ameteur collector would. Most graders will not slab a coin with verde gris and active PVC. They also usually will not grade a harshly cleaned coin. There are a few cases where cleaning is beneficial. PVC and active corrosion will eventually completely destroy the coin. Only use cleaning methods that offer the best trade between conservation and causing further damage. Pitted coins should to be protected after they have been conserved. A wax like Renaissance Wax (Ren Wax) is best to fill in the pores of the metal which will protect it from further corrosion. Museums use Ren Wax to protect their metal antiques, it works great on ancient coins. Raw copper, bronze, brass and steel would eventually corrode away to nothing without being coated and stored in a cool and dry area. Even the oils from your skin will cause corrosion. Part of the duties of curating a coin collection include protecting your investment. All coins in a collection should be properly maintained and stored. Even though some of your coins have very little to no intrinisic value today, they will eventually if they are well kept. Collectors 100 or more years ago put coins away as an investment. The only reason why these coins still exist today, is because someone was thoughtful enough to put them away when they were new and were only worth face value. In rare cases a coin will be lost and recovered like in a shipwreck or ground burial. The high grade coins only come from oldtime collections.
The areas where the verde gris has been removed will be discolored. Once the verde gris is completely removed, it may not be a bad idea to dip the coin in a coin brightener. Doing this will even out the toning and help with the surface and eye appeal grade. There's previous evidece of cleaning so this process wouldn't harm the coin any more than it already has been. There are chemicals which will retone the coin, but do this at your own risk!
Hi, Always looking for the varieties, I see something to the upper right of the second 8 in the date. Can you take a closer look at that area . It may just be the scan, but could this be an overdate with the top portion of a 7 showing? Bill
I think it must just be the scan. I looked at it with a 24x loupe and didn't see anything resembling a seven.
Hi, On some of the overdate varieties, the only visible remnant of the 7 is the upper right portion of the digit. It looks like a small line or dot Just checking Have Fun, Bill