Yeah, I was thinking PMD myself just because of the way it goes through the hair and ends. A die crack, I think would just get thinner in width and disappear. that one just gets deeper (it seems) then shallower. But then, I'm not a die crack expert.
Can't really tell if the edges of the impression are flush or raised? If flush, nice strike through. If raised, just a scratch.
Thank you all for your comments... It's not a die crack, it is incused (should have stated that) but... it is flush with the surface and from a new box from the bank, that's why I was thinking it is a strike through.