The ball launch is different. It does not shoot up the side, it is launched by a coil right between the flippers in the center of the field. It is angled to shoot slightly to the right side.
Pro-Football Pinball Mods

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Gottlieb, 1973 Pinball Mods
Manufactured By: D. Gottlieb & Co.
Date: February 1973
The ball launch is different. It does not shoot up the side, it is launched by a coil right between the flippers in the center of the field. It is angled to shoot slightly to the right side.