Hi can you help me for this coin please? View attachment 20130614_0005.bmp View attachment 20130614_0007.bmp
Looks like mechanical doubling, which is common on proofs as they are struck multiple times by the dies.
I agree with Simon; it's MD. Specifically on your coin it appears to be a type that is only encountered on proof coins called flat-field doubling. It's very common. Here's a link that will tell you more about it. http://error-ref.com/flat-field-doubling.html