Right, it varies between plant, model year ,shift, assembly line ,worker, etc. The best thing to do is preasure wash everything first , not sandblast .
Then photo document what YOU find on YOUR car . Then you can duplicate it
as part of the restoration process .
Greg
100% correct.
It's always amazed me how many people think that all the inspection marks will be identical on every car.
It was done by many different people who worked inspection on different times during assembly production.