[Bliggity]

I see there are about 122 different cards in the E121 Series of 80 set (just counting unique images, not caption variations or back variations) and about 127 different cards in the E121 Series of 120 set.

How much overlap is there between the two sets? In other words, if I wanted to build a combined set of 80s/120s with one example of each picture, how many cards am I looking at total?

Thanks in advance!