Each issue has specific diagnostics for the particular die pairs in use and many of these diagnostics are die lines on the coins. There are multiple excellent reference works with images available, but I do not have them in digital format.
Well if you stack all the MPLs one atop another you'd have a stack 14 feet tall WOW! If you stack all the rest of the Lincoln cents struck it would go to the Moon and halfway back. Now...that's a visualization, eh?
Comments
In honor of the memory of Cpl. Michael E. Thompson
R.I.P. Bear