1967 Kennedy Half With Cool Struck-Through Iron Piece

Looking at your picture there is one thing that makes me believe that the rust piece is sitting on top of the coin's surface and not struck through. As the piece of rust crosses out of the indent of the tail feathers and into the field, there is no delineation line on the anomaly. In other words, if this had been a "struck through a foreign object", you should see some contours to the object that is supposedly imbedded into the coin; that part is absent.

BJ Neff

I think it is PM
Would think the FG initials would be affected
or at least parts of them showing up on the debris.
They seem to be fully struck and underneath the debris.
If a good chunk like that was on the planchet/die it should show weaker detail in any devices off to the sides of the fields. I.E.: the initials.

It's probably bad form to keep commenting on my own post () but I'm intrigued by this coin. I understand the comments about the coin details not being struck onto the foreign inclusion. My guess is that this iron or steel fragment was much harder than the copper-silver planchet metal and therefore its metal surface did not flow into the die recesses during the strike. Instead the piece was punched into the coin surface without acquiring much detail in the process.

Nevertheless, I do see faint traces of the eagle tail feathers on the fragment. Here is a photo taken at an angle which I think shows these traces fairly well.

I've also contacted error and variety specialist Ken Potter about this coin and will report back when he provides his input.

Looks like it's on top of the design rather than in it.

In the newer picture it looks to me like there is some of the tail feather design in the iron piece. Probably it's easier to tell in hand.

I wouldn't trust any grading service to accurately evaluate an error of this nature. Foul-ups are commonplace, even with pedestrian errors.

ANACS reports my submission is on its way back home. Their verdict on this coin is....

It sure looked real when I just now saw it, and scrolling through the posts, I see it has been verified authentic as a strike through error! Very cool.

The reason I thought it was a good strike through error was; the tail feather lines in the metal followed the same relief as a normal metal clad coin would, obviously since the metal is iron or ferrous, it has rusted. There is no spot on the reverse to indicate this piece of metal was pressed into the coin, outside the mint on say a vice, or with pliers. The obverse hair area is full struck and shows no signs of damage. I've seen a few Morgan and Peace dollars with stuff like this in them, but never a more modern coin. Nice circulation find Jaobler!