Upsetting mill error

[King James]

I am wondering if this is planchet upsetting mill error

[Petespockets55]

Nope.
The upsetting mill puts a continuous proto-rim on the type 1 blank.

This would be damage to the coin after it was struck.

[King James]

So there is never an error

[MintErrors]

In my opinion, upsetting mills do produce errors. But I would normally expect to see more of a transition from a high rim to nothing. The planchets are spun in a circle follow a path in the upset mill in order for the type 2 rim to be added. Your coin exhibits some unusual characteristics. Looking at the obverse, we have areas at 11 and 6 o'clock. On the reverse, we have an issue from 1 to 7 o'clock. It's very abrupt.

I cannot tell by the photo if this is an error or was it simply a coin that was removed from a jewelry piece. How is the reeding ? Does it look pretty consistent through out ?

Have a look at some upsetting mill issues here :
https://www.error-ref.com/abnormal-upset/

[King James]

It appears that the reeding is a bit more narrow where the rim is missing.

[MintErrors]

OK, the reeding is not smashed, so that is good news. In my opinion, It's not post mint damage - more than likely these are rim cuds, (die breaks) the gutter between the edge of the die and the rim are affected. The additional photos helped me figure it out.

https://www.error-ref.com/rim-cud/

I had to sleep on this one. I logically ruled out coin roller damage, a vise job, and a half dozen or more scenarios.