The stickers are small axe blades, representing the axe that is given to the winner of the Stanford/Cal game each year.
i think because that player on the redskins who was killed was #21.
It depends on the helmet! If its a Navy Blue helmet its a Gold script Lettering "Cal" and if its a white helmet its a navy blue lettering "Cal"! Hope this helps
Red axe, given to the winner of the Stanford-Cal game
Schutt
Marshall University has an M on their helmet.
Mississippi state university
It looks like a bull's head
UCONN (university of Connecticut)
Razorback
Razorback
It is a warrior helmet and two spears that are crossing each other.