jct
Senior Member
what is it and the purpose of it and what's it do?
Usually these are inspection tags. Some special order cars will have more than one. The mark on the tag is supposed to be unique to the individual inspector. Some were stamped on the tag and some were punched thru the tag.
Dave
Some are square & some are like a metal ribbon. Some inspection stamps are on the actual tag, some use a separate tag. There’s not a lot of consistency. How each plant handled the inspection tag process varied from year to year.