I'm not sure if it is a strikethrough or not. I think I see coin metal pushed up along the south edge. ~ Chris
It looks like Damage at the first look but then after a second look it looks raised. I'm just not sure.
looking at this coin i see 2 distinctive characteristics the first is the jagged north edge. and the 2nd is the the SW end where it just comes up to the face without a jagged rough edge. I have had coins in the past where a thread from something was stamped with the coin causing the thread to be embossed into the coin. this is a possibility but i do not see the thread imprint on the coin. things that look closer to this is a planchet that separated like a an internally split clad layer of planchet. http://www.error-ref.com/laminations-in-clad-coins/