Alan,

I may have a 7UP can 1/3 "RARER" than yours. I have one right off the store shelf that is totally empty, unopened, no damage, otherwise identical to the rest of the 6 pack it was in. I also have a 16 7UP bottle, full of soda "and miscellaneous heavy, muddy looking debris" that has boosted the total weight to 7.5 oz. more than normal, also purchased off the store shelf in 1973. Valuable? Probably only to 7UP bottling, due to it's rather dubious advertisment value!!

Roger