1971d

[Steven]

Any idea what is going on here. The white arrows point out a raised bar to the west of the second 1 in the date. The blue arrow points to a rais3d curved are to the east of the second 1.

I'm thinking probably a gouge but looking for other opinions.

[Shingpumps]

Interesting, I have no clue what it is. Im thinking like you said, die gouge