Windshield washer info needed

Before I bought my 70 Swinger, I never knew that these cars could come with a foot pump activated squirter, is there a way to tell what it came with from the factory, foot pump or electric? Was it year or model specific for the foot pump? It seems pretty old school tech for a car made in 1970. I dont have a broadcast sheet for my car, so I have no idea of options, no fender tag either :( and my washer reservoir was removed to make room for an MSD box. Ya I know, the previous owner could have found a spot for the MSD elsewhere , and kept the broadcast sheet, and not lost the fender tag.....:mad: