1956-D Jefferson Nickel RPM?

Hi all. Need some opinions regarding this Jefferson. Part of me thinks it's an RPM, and the other part thinks it just metal flow. Any thoughts appreciated.
Andy
1
Hi all. Need some opinions regarding this Jefferson. Part of me thinks it's an RPM, and the other part thinks it just metal flow. Any thoughts appreciated.
Comments
Looks like machine doubling to me
I don't see a match for it here: http://www.varietyvista.com/05 JN RPMs/RPMs 1956D.htm
It looks more like machine or die erosion doublong.
Thanks man!