Just been reliably informed ( I posted this earlier trying to find out what caused it) that this is Progressive Die Transference
There appears to be another explanation that two members are discussing on another thread I posted the coin on.
A rose by any other name smells as sweet ... 55 Double Die it is.. Those frustrated English teachers can stick their heads in the sand 1864 Two Cent Piece Lg Motto Au Mint Error Repunched Date, Cracked Die, Cuds, Rev Rotated 170'