Peters ammo sign

I have a Peters shotgun shell sign that is made of steel and is 8ft. X 4ft.I am guessing from the graphics it is from the 50's or 60's. It shows a man aiming a shotgun and also shows 3 shotgun shell boxes. Across the top in big red letters it says "Peters pack the power".
Any info about this would be greatly appreciated. I am looking to sell it, but need to learn about it's value first.

As for condition, it has rust around the edges and some scratches on it. For display purposes, once it it hung up, a frame around it could cover the rust.
Thanks for your help.

john