As acls said, the 7ups with eight bubbles are earlier and harder to find than those with seven bubbles. 7ups from around 1940 and later will have seven bubbles for the most part. There are some exceptions, but that's generally what I've noticed.It was actually listed for $40. I did a lot of bargaining, and horsetrading for this one. I saw somewhere, I can't remember where, that there were bubble variants in some of the bottles. This one has eight. A later bottle I have has seven. Does this mean anything?