On the obverse parts of UN from UNUM can be seen immediately in front of Lincoln’s tie. All other clash remnants have been abraded away. On the reverse a small portion of the underside of Lincoln’s nose can be scene on the shield.
There is a good chance if a pre-abraded example were found that it would yield strong clash marks. The only marker that might exist from an earlier state is the die crack along the upper edge of the shield.
Coin courtesy: Lynn Morace