There isn't a District of Columbia Mint. The one you bought is from the main Mint in Philadelphia.
NNC, MS-65 Personal Opinion, MS-64+
MS-64
MS-66
Yes.
I'm awful at grading mint state Lincoln cents, but here goes nothing! MS-64 RD
I have seen a counterfeit Silver Dollar with a die clash before. I can't remember if it was a Seated Liberty, Trade or Morgan. Here's a different...
It's a die chip, not a cud.
MS-63 What's the black mark in her hair?
I was searching a bag of foreign coins when I came across this: [ATTACH] After doing some research, it appears to be 1½ Dokda from the Indian...
MS-65 Nice Coin!
VAM-2FC [ATTACH] $5 Cherrypick [ATTACH] $2 Cherrypick [ATTACH] Duenweg Strawberry Token "Close MO." variety (My pictures don't do this...
I agree, Machine Doubling (also know as Strike Doubling). If you don't know what that is: https://www.error-ref.com/?s=machine+doubling Welcome...
AU-58
MS-62
What's the washer like object in the "everything" picture? Does it have any lettering?
I'm not that good at grading Buffalo's, but I think it's an MS-66.
So far I've done Half Cents, Large Cents, Flying Eagle Cents, Indian Head Cents and Wheat Cents. Here's an example of what I'm doing: Wheat...
@Coins4Eli specializes in Early American Copper. I'm pretty sure he'll be able to attribute your Half Cent for you.
VF-35, $180-$225.
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