The 75 and 76 sets.
Those are getting tough to find these days and I sold mine years ago for big dollars back then.
The 76 trays came in 2 varieties. One with the regular and one with the all one series wrappers that were just like the 74s. The only difference was on the 76 trays the 1976 year was on the back with the promo expiration date.

When I get home I will see if I can find some pics.