Up for auction is a NOS Brake Pressure Distribution Valve Block with Switch which fits the following:
CHEVROLET
Box Part # 3980761
Part is stamped with the Weatherhead insignia 9 219 on brass
Part is stamped with the Weatherhead insignia on the bracket
This is nice -- The vintage high quality genuine GM version your car came with
Please check part #'s and review pictures for your particular application