On our two halftrack frames, I noticed two small torch cuts in the same spot. We were curious, but didn't think too much about it. Then, I came across a picture of somebody's halftrack on this forum. And I noticed the same cut in the same spot. I can't remember who it belonged to, but I think Shon reached out to them and they didn't know what it was from. Then, I came across another picture that showed something was installed at that spot at one time and they must have been torched off.
Below you can see our two tracks and one of y'alls with the cuts. Then the last picture shows something installed there.
What is/was it?

Cut frame

Cut frame #2

Cut frame #3

Something mounted in that same spot.
Thanks!
Corey