Off Center On Foreign Planchet?

Thanks for the great info Mike. I'm checking out the bidding history, and it looks like you actually won the auction. When you get the coin in hand, I would love an update to this thread. At the very least to feed my curiosity

I appreciate it Mike, thank you. Chances are it's going to be normal weight because you say the nickels you've seen with the same upset had normal weights. Very interesting coin nonetheless, it's going to be tough to determine exactly what happened.

Well,...that wasn't the result I was expecting.
Mike got a nice pickup there...I hope I hear more.

Is it just me, or does the radius of the planchet seem smaller than the radius of the Linc (the part that's good)? A little play in the Gimp indicates - based on the ratio of the length of "IBERTY" to the full diameter of a Cent - that the planchet is a bit small. There's room for error in this, though.

I really would like to know the WEIGHT.

I now have the coin and my quickie scale (accurate to the nearest 0.1g) provides a weight of 3.0 grams. It therefore falls within the normal range of variation for copper-alloy cents. That's what I fully expected. But it's a nice addition to my small stockpile of off-center coins with abnormal upset.

The off-center cent was minted between 1959 and 1968 and its exact weight is 3.04 grams. While the Mint has produced foreign planchets that weigh exactly 3 grams and that are composed of 95% copper, none of these candidates were minted during the requisite time period. So I'm confident this is a cent planchet.

This "long bevel" style of upset makes no functional sense, as the highest point on the planchet's proto-rim lies well inside the position of the future design rim. One of the reasons for upsetting a blank is to guide the formation of the design rim. This style of upset is decidely at odds with that goal.

Minimum diameter of the unstruck portion of the planchet is 18.75mm. So it would have fit comfortably inside a cent collar, had it been inserted properly.