Awesome 1978 NFL helmeg sticker set, size is about 2.5 in square.

I found an old envelope at a flea market full of these 1978 NFL MAKbac stickers. After doing some research I found that MAKbac was a company that did the backing for a lot of bumper stickers for NFL teams and presidential candidates and band stickers in the 70s. These were part of a mail in campaign in 1978 and are in near mint condition, aside from normal age signs.