1928 D Buff Machine Doubling?

[Ammoman]

I found this nickel in a bin at the LCS. I have no doubts the 2 has machine doubling but inside the 8 straight lines have me a bit confused.

Can anyone explain the lines?





Thanks

 

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[smokeythecat]

I see machine doubling. From what I remember, the coin while being ejected from the dies "slips" causing the little ledges.