Power drum brakes, should it be a square master cylinder with or without bleeders or a round master cylinder with or without bleeders?
Thanks!

Dave, here is what was on my car when I got it, small, squarish, no bleeders and a lot rustier. I think the booster is original to the car; the master cylinder, I don't know. It looks like others I've seen on '68 drum brake cars, so I'd consider it correct.
BillL