2007 P Washington Gold Dollar. Possible Collar Clash. Need Opinion

Not sure what it would be called with doubling on rim lettering, I have never zoomed in on the edge of a toonie to check the lettering but it's regular for them to cause bumps on the rim where the letters are stamped.

I would recommend never holding your coins between two fingers like in your last two photos, fingerprints can cause damage to your coins and destroy there value.

Thanks for the reference john1. I never thought to study the coin edge.

Agreed, Machine Doubling.

Hi, the machine might have been set a little too tightly.

On the P and the D mmintmarks, they use the castigating machine (edge lettering machine and a die), and the coin is sent through in a separate step from the strike. It's always going to be Machine Doubling, the dies do not have doubling on them. the most valuable of these "errors" would be
1. not run through at all.
2. run through twice or more.
3. wrong coin run through like a sac dollar run through as a Presidential dollar on accident.