Nice thread; glad you started it. I'd not looked at shared orders before. Can be a bit addictive. Saw a curious one though: 1854-O 50C Arrows,...
Go to Amazon and search reagent grade acetone. You'll want one that meets ACS specs (American Chemical Society; see link below). At present,...
Amazon and Home Depot. Cal
What law? Maybe a state or local pharmacy board law or reg. Definitely not required outside of pharmacies in Calif. (if there is, it's widely...
Maybe it's in the acetone you buy at your pharmacy. Not in the reagent grade or painter's grade that I buy. I never buy it at pharmacies. Cal
Not true. There aren't a lot of acetonolics out there; so no need to make the stuff nauseating. It's not particularly toxic either. Our bodies...
So, Doug, do you think the changes you saw when copper coins were treated with acetone were genuine chemical changes or due to removal of oil,...
Pure acetone won't hurt the coin and will remove PVC residue. However, if copper has a layer of oil on it, acetone will remove that as well so...
I've had Lincoln cents in Whitman folders do more than just tone. Some had active corrosion at the rims and edges. Wiped off the verdigris, put...
How else would coins retain quality germs? :yack: Cal
The whole Arkansas series is known for its lack of luster. Probably had to do with die polishing (or lack thereof), or planchet composition or...
Here are the grades from Stacks and PCGS. Stacks graded them each aChBU. That should translate to MS62. When I looked at the coins before...
Coins are best served with a robust Lodi zin or syrah. Cal
So, in 1991, I bid-on and won a set of 1939 PDS Arkansas commemorative half dollars in a Stack's auction. They were raw, and Stack's graded them...
If we limit it to coins intended for circulation, the HR Saint is my pick. Thank goodness the headdress and wings were left off. If proofs,...
Morgan initialed some of his other engravings. One is the stunning shield earring design. See the link below for one coming up for auction....
If the antifreeze was orange, it has OAT (organic acid technology) corrosion inhibitors. OAT compounds aren't orange; but an orange dye is added...
Yeah, probably cut-up and the chunks melted soon after the theft. No market to sell it intact. Cal
See link below. Arrested in Germany. Coin not found....
I think few folks dispute a grade on a coin that they submit that comes back graded higher than they expected. Perhaps they would for an...
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