First 3 pictures:
Before the strengthened restored obverse of 1959, it looked like this.
The bottom of 9 shows a misaligned doubling with an errant 9 hubbed above, (under) which on Denver just happens to be missing the large loop tip.
The next is the full beautiful restored obverse of 1959, we all know.
Just the R in its modification doubling.
Doubling not only on the subsurface leg, but on the revised R face. Two types.
We'll see...WHAT? What brought your attention...?