Anyone other than me remember these stickers? This one is from 1985 but I think Fleer did them all the way up through 1992 before they stopped. I always considered them a bonus and preferred them to Topps' gum. At least you might get your team's logo. After you had one for your set you could paste them wherever you felt like it.
The back of this sticker is a form for entering a sweepstakes. The drawing started on February 28, 1985 and ended on July 30 of the same year. All one had to do to enter was send in your name and address and tell why you thought that Fleer cards were the best. A handy check-off form was provided listing four reasons. The reasons were: "Outstanding action shots," "New multiple image photos," "New color coded borders," and "Stars kids want most." They didn't even list the reason I always thought was Fleer's strong point: numbering the teams together as opposed to randomly. That system really helped us team collectors.