Two questions really...since it has obviously been off the car, does this look like a real tag or repop? Also, is there any way to match it up to tell if it is the right tag for the car?
It's possible to match the trim tag to a particular car but only if other paperwork for the car is found with the unique body number - 7802 in this case. I've seen CHASSIS BROADCAST COPY sheets as well as BODY BROADCAST COPY sheets for 66's but haven't found any numbers that correspond to anything on the trim tag so it's uncertain just what paperwork might be necessary.
Background: I know that 1967 Baltimore and Atlanta (and probably other plants) had trim sheets showing trim color/style, body color, group options, etc. and also contained the Job number, body number, and other 6-digit number found on those two plants' tags. No assembly sequence number appears though so it doesn't positively tie the trim tag to the car.
I know the same is true for 1966 Baltimore trim sheets but the only sample sheets and matching trim tags I have are for Baltimore. I'm sure other plants used these trim sheets, I just haven't found any yet.
Is the tag real? Probably, based on condition - although repops are getting better all the time.
Does it go with this particular car? No way to positively tell that I'm aware of.