This auction is for two Baltimore Colts items from the 1960's, that I will call placemats.  They have a foam back, but the foam is very aged.  They are 11-1/2" X 18".  The fronts appear to be some sort of vinyl material, but I can not tell for sure.  They also show age, and one has a few tack holes, where it was attached to a wall.  Sorry, I can't be more specific.