Until now I didn't know that Brach's made this cleverly designed candy box in a different iteration. The one in my collection holds 55 "paks" with a net weight of 21 ounces. This variant holds 70 "paks" with a net weight of 22.5 ounces. The graphics are otherwise identical. Since the indicated measurements for the box up for auction are identical to the one in my collection, I suspect Brach's had made each "pak" smaller so that more could fit into the same box space. I think it is reasonable to conclude this variant is a season or two later than the 55 "pak" example.
06/16 Update: This rare and very cool candy box brought $84 even with the slight damage.