The brake system is split up into
- front brake
- rear brake
- hand brake
- brake control
Pedal box C17253 early type with early DUNLOP cylinders
The short one is the early 
Brake vacuum tank
as we can see here, the black is satin 
Brake reservoir tanks
…with 2nd generation of sender unit made by SOVY 
first style brake fluid bottles 
Hand brake compensator or “Bird cage”
Early compensators also did not have the wire adjuster … 
..later models had the adjuster on the lower right 
Early short arm on the left 
Hence the early brakes had shorter legs. 
The longer of each type are for the later brakes about 62/63
Rear brake
Early cylinders had no “C” 
All rebuid 
Early pistons 
Stainless steel liner 
Original coating 
Early front brake cylinder with no “C” marking