Not sure. It's difficult to tell from the photos. It looks like his neck should be shaved. Possible MD from his beard. I'd hang onto that penny until you can find out more. Try local shops for their opinion or send to Wexler for his.
Hold on, that has to be something. I haven't been at this that long but I have never seen that before.
I just went through a bunch and compared them to your last picture. The throat angle on your example is steeper than the normal from my perception. I'm guessing there was a little grease fill at the top of the throat making it look more vertical. The beard on the throat area does show up on anything that isn't to circulated.
Great photos for what you are working with. Love your enthusiasm for the hobby! Keep it up and you will find some good stuff.