Hot Rods The forgotten A roadster, can anyone id master cylinders by layout?

I went to pick up some 32 parts from a marketplace ad, and possibly stumbled on the coolest collection of As TS and parts I've ever seen.

So naturally I bought a jalopy of a roadster between my spare parts, and some parts I got while I was there, I should have enough to throw it together. Can anyone ID what these swinging pedal master cylinders might've been? They did a really clean job channeling this thing in the past, and the body is really solid.

 

Can't guess when that was done; but the first master cylinders I came across with that 2 bolt pattern were the '60s "fruit jar" Ford masters.