In looking at my Mach 1 I notice it has no stamp on the trunk lid. What is strange is its the original lid and paint and if you look at the pictures you will see that there is a large amount of overspray in the area where the stamp usually is. Anyone seen this before?
That is not overspray nor would we typically see overspray in that area. It was direct application on purpose since this was one of the surfaces that was meant to be painted though runs (not like you have) were sometimes found and not a reason for failure and respray at the factory. Paint inspector stampings are very delicate and can be wiped away with little effort.
The last pic is of my headlight bucket stamp. I assume that would not be the same person as the trunk inspector?
Correct. Parts and unibody were not in the same location in the plant when they were inspected and marked.
The painted area shown in your first picture is interesting. Not sure what color that is but the paint runs like that I've never seen and may be something not applied at the plant. Also noticed that above and to the right in the same picture there is a chip in the paint and appears to be a light color under the blue then a rusty metal surface directly below. If so that may explain or at least provide a clue
