I've seen people here say that they've used acetone on zinc coins without problems. But I've seen lots of people say they've used it on copper...
Sounds about right. I prefer putting them into white vinegar overnight, up to a day or two.
You're too impatient. ;) White vinegar alone should do what you want, and its slower pace can give you more control over the process. How long did...
Don't know if the policy has changed, but circa 2014 when I complained about defects on the coins I received, they refunded my return shipping...
Aren't those lines in the left field a design element? I see them in the illustrations on the Mint's site: [IMG]
Well done!
And that's why we like dateless Buffaloes with mint marks! Vinegar soak?
Always a possibility. For something like this, though, I would also accept "found between the cushions of the old couch" and the like.
Looks like it's just back from a very long, restful vacation!
Ouch, I feel that. I've got (for now) a healthy back, but it still gets to be a little painful doing a long prep and cleanup at our normal-height...
Those floating devices are one of the main signs I use to spot counterfeits. It took me a little while to realize that they appear on legitimate...
Now I know what it reminds me of! It reminds me of the bridge of my nose, post-crash and post-stitches. :(
It's just markings on the slab. ;)
I was all set to say PMD on this one, with the colors making it look like acid damage -- but I wonder if this actually started as a planchet...
Can't "Like" this, but couldn't agree more. :(
This probably revisits ground from your other thread, but I disagree with this. If the coin does not straight grade, that doesn't say anything...
That's close, but not identical, to my definition. To me: "Conserving" is a positive, because it removes debris or contaminants that obscure a...
You are correct. But, hey, if they were easy to find, nobody would care about them. ;)
Okay, that is low. Maybe Jim's right about the acid damage. (Or maybe both!)
To me, this one doesn't look like acid damage -- it looks like it was partially melted. Can you weigh it? What does the edge look like?
Separate names with a comma.
