I'm curiuos,what is the inspection tag under the fender tag?? My 69 SF has this as can be seen under the left top corner of fender tag.
As the cars completed the trip down the assembly line, they were given an inspection to insure that the build sheet matched what was installed on the car. Each inspector had a unique stamp, usually in the form of a hand punch that punched a hole in the inspection tag. Some cars were known to have more than one inspection tag or inspection marks on the tag. Other examples exist where the inspector mark was stamped on the build tag itself, these protocols varied from year to year and plant to plant.
Dave