Whitcomb electrical info needed

Anyone out there have available for copy/sale or can find a schematic of the Westinghouse control system used on larger Whitcomb center cabs? Been searching and picked up a couple of books that help but need a schematic to help local hysterical society.

Thanks much.

The Railroad Museum of California got all of our Whitcomb files. If such a drawing exists, they would have it. Regards, hankadam

THANKS MUCH