Let me Google that for you... https://www.usmint.gov/wordpress/wp-content/uploads/2016/06/2014-rd-biennial-report-appendix-4.pdf
And the company that makes the blanks says nothing about it. If that were one of their capabilities they woukd surely advertise it.
A number of people buying multiples are dealers who by 10, 20, 50 to sell at shows AND to break-up into the individual coins to sell in their 2x2...
Check the reverse at 9 o'clock for the New Orleans mint mark...
Let us know if they even respond, some of them are notorious for the speed (glacial) of response to email if they even reply.
Still available - 7:44am CDT - but limited to 100 sets per order.
The report says 96.7% sold net, so there is only s few thousand left to sell out
That's an NTC slab - they're the only ones I know who use the green insert. I'll bet cash the real grade is anything except what it's marked.
1 of the CS suppliers for cent blanks: http://jardenzinc.com/products-2-2-2-2-2/
You can likely find sheets of mylar in different thicknesses at the local craft store and cut them down. Mylar is a trade name for polyester film...
An that is why you want FOOD GRADE Acetone. No benzene in that 0.5%. Because otherwise they taste nasty.
You mean like this one: https://www.ngccoin.com/certlookup/3770248-007/30/ [ATTACH]
Not me, but @BadThad and @SuperDave are the experts...
There are contaminants that are soluble in water and there are contaminants that are soluble in acetone. There are contaminants that are soluble...
With water like that, no way to use tap water unless you make your own distillation system.
How bad is your water? I wouldn't touch a coin with tap water here, because I see the residue and minerals and additives every time the cat's...
PMD
Then try another rinse... the fresh acetone will do more good than time will do.
If it hasn't come off in a day or so it probably won't come off. And that's a good thing. Remember what you're trying to do is remove the organic...
Looks like it's working well - lots of crud removed.
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