Everything on the shoulder of the obverse and around the O in one on the reverse is planchet roughness.
Those are opposite of each other and the most metal is in that location so with worn dies or other weak strikes those are the last areas to strike out and many times are the only areas that don't smooth out the planchet marks. I like to show this example as you can see a difference in color as well as the planchet roughness on the shoulder. As Doug has pointed out, that is not wear but a luster "break" that is from a lack of full die contact that does not impart luster in that area as well as not striking out the marks. This example also has planchet flaws on the O in One on the reverse.
It is always the smallest details. this time, slight weakness in the strike. Just posted a 45D GTG GTG 45D Lincoln | Coin Talk Just posted a GTG 45D GTG 45D Lincoln | Coin Talk