Interesting reversal there. Think it is more deterioration than anything, the "ghosts" of metallurgy and the process of machining. There is a slight disturbance east of 2 as well. Sometimes what happens is a "grease plug", the hard crap within the details, falls out, consequently it gets stamped into the die and imprinted on the next few coins until polished off. Not sure if this is that, could be.?

























