spot weld inspector mark?????

[CKfan]

Never noticed these before (that I recall).

A couple weeks ago I removed the old seam sealer from the roof drip rail just above the passenger side windshield area and noticed a "32" stamped over the top of a spot weld (didn't take picture at the time). Upon seeing this, I just assumed someone at the factory counted the number of spot welds in that particular area and stamped "32" ????. But yesterday while marking any areas that still needed some body work, I noticed in the rear of the cab, center bottom, there was also a "32" stamped on top of a spot weld. This leads me to believe maybe someone had to mark that they inspected the spot welds??????
I looked the rest of the cab over but found no other such numbers.

I did find an oddly placed stamp on the driver's side cab floor which does not correspond with a part number or vin number or model number. The stamping is "23420."

Just found these markings interesting , I hope someone else does also