What's On The Neck?

That's interesting. Judging by the lighting, it looks raised on the neck?
For a clash to get that deep into the portrait, the wreath would also be seen in the fields.
It's not listed in my attribution guides--if it were mine, I'd send it to Rick Snow.

Either way, a clash hard enough to embed features that deep in a die (remember, the devices on a die are negatives) would destroy both the dies and the planchet. Even if it were possible, the reverse features transferred would be as strong in the obverse fields as they were on the actual reverse. It'd be a pretty spectacular coin.

If the image is accurate with the hint that it's a raised feature on the neck, my vote would be for a previous strikethrough strong enough to have left a permanent impression in the die. Not beyond the realm of possibility.