This is from the 1989-90 Sticker set called Grid-Star. I don't see it in the database. If we can find a checklist we can add it. Paackaging says officially liscensed by NFL.
Here's an Ee-bay link to one being sold.
https://www.ebay.com/itm/NFL-1989-90-Grid-Star-Decal-with-Cleveland-Browns-Pennant-Clay-Mathews/313366530415?hash=item48f619c96f:g:1WsAAOSwXwBf7-ma
Always looking for Blackhawk hockey, Notre Dame Football, White Sox and Bears Stuff. I have a plaque in my card room that says, "I could have been a millionaire but my mom threw out my baseball cards". How apropos!!! Collecting Chicago Blackhawks Hockey, Doug Wilson Hockey, Chicago Bears Older, Notre Dame Football in their college jerseys and Chicago White Sox.