I think this was a vending machine item originally. The team is New York Giants and the color is blue. The inside is marked by maker, OPI 4. This is
NFL Football Helmet Mini Miniature OPI New York Giants Vending Machine Toy
8 Vintage Mini Football Helmet Vending Machine Loose As is 1A – Fandoms Treasure
Sold at Auction: NFL GUMBALL VENDING MACHINE FOOTBALL HELMETS
All are in great preowned condition. The containers show some wear. Feel free to email me with any questions.
Vintage NFL Mini Football Helmets 6 Plastic Gumball Vending Mini Toy Lot Set
Stamped with OPI on the inside and marked AA on the lid of case. The following NFL football teams are available These are from the 1980's. Includes
Gumball Helmet NFL 1980's AA OPI Vending Machine Plastic Mini Football Vintage