Learning differences

[Optic]

Hello again. I’m just trying to learn the difference between mechanical doubling, die deterioration and double dies. I think I have a coin with two if not all three that I can use as a reference for myself. I’m just looking for some kind of verification.

[mustbebob]

Nice photos. These are all MD,

[Optic]

Well thank you Bob. I thought the chin was die deterioration, letters MD and thought maybe one of the 9’s was a possibility but leaned more on MD. Still learning. Thank you very much.

[jcuve]

I agree with Bob, all MD