Not sure who made the master cylinder but the flat pancake booster manufacturer is Midland Ross.
There is another type of booster but cannot recall manufacturer.
Kelsey Hayes do make the "PIN" style caliper I know that for sure.
That master cylinder may be made by Bendix.
Thanks very much paharamia! Your booster looks pretty good. Mine was a pitted badly but booster dewey did rebuild it (still haven't tried it on street yet).