It's not a quarter of the normal weight, it's 25% of a GRAM lighter. That's why you can see the design elements, but they are somewhat 'mushy'...
Damaged surfaces, not any type of error.
What you see on the coin's surface all occurred well after it was already in circulation. It is not an error coin of any kind or type, imo.
slightly underweight - insignificant, imo, at 2.9 grains.
I second that emotion
Those are 'hit's or contact marks - no error on it. See all the other contact marks on the obv.
To me, it looks like it's a broadstrike out of the collar. If it were submitted to the three services, they would call it Broadstruck, or maybe...
I see no errors on your coins in the photos. I see a contact mark/hit on one of 'em, but no errors.
If you don't have the RR gauge, you can do most RR's this way If the top of the reverse points to 1:30 CW) or 10:30 (CCW), it's a 45 degree...
that's a minor mis-aligned obv. die = Yes, an error, but not mis-aligned enough to bring any premium, imo. If it were a collar clash, you'd see...
Official Mint tolerance is 27 Degrees, and they are not considered collectable unless they are at least 45 degree rotated, either clockwise or...
Damaged, sorry to say
Just remember if any 'good' error types were easily found in circulation, they wouldn't be worth much.( or as much as they would be worth now)
De-plated after it was in circulation
'Trust...but Verify' - Ronald Reagan
That's a DARN NICE large Cud (die break) ! The Cent planchet (unstuck) is very common, and worth about a buck or two max. The cud is nice, and...
'residual metal' = damage
Attribution? OK, the digit is 'sliced'/damaged, and you can see part of the damage on the right side of the '6' also. What other kind of...
I'm 100% certain of it
DD Damaged Digit Not an error, I'm sorry to say
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