Thank you Paul Harvey!
I purchased a Roman Republic from NobleSpirit and when I posted the e-bay pics here, it was condemned as a fake. I e-mailed them and called off...
Two comments, Teaching high school chemistry, I had a administrator (speech instructor) sit in on a class where I was teaching the students how to...
I have taught many Chemistry For Nursing type classes and the most interesting case I ever ran into was a lady in her 50's. I put on the board...
Toned coins can be valuable, black-toned coins are normally worth melt value.
Went to Vegas. Stopped in a grocery store to get some donuts. Saw a Coinstar...$8.12, a Canadian dime and nickel and a Thai coin. Cha-ching
Try a caliper on them and see.
Don't slab
Oh no...say it ain't so Joe...uh...I mean Doug. :)
Sorry, copper coins cleaned so as to remove toning will tend to tone pink. Since acetone or Xylene will not affect toning, there should be little...
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Neither acetone for xylene should touch real toning. EZest will somewhat strip the coin...a little stripping doesn't hurt if you are careful.
From Wikipedia: Gesellschaft mit beschränkter Haftung which is German for "company with limited liability", is a type of legal entity very common...
Not only preparation, but subsequent treatment. After a coin is cleaned, the fresh surface is an innocent in our harsh world. I'm not sure what...
Actually the acetone will remove many organic substances, not all. Water will remove inorganic substances including generic "dirt", and organic...
Don't think so.
Distilled or deionized water is a good idea, but if you use tap water and blot off any excess so that it does not evaporate and drop out any...
Yup, cleaning or conserving is a radically different process between unc/proof coins, near unc coins, and circulated coins. No universal treatment.
And the coin fairy will leave these under your pillow.
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