In addition to what Rik has mentioned - your bike would have had a brake rod operated by a short cable & combination levers
The original cable was 3mm od & was made from thicker strands of wire compared to modern type / that is if you can find a maker - not so easy
Clutch cable was made from same strand & thickness of wire
The combo levers also grabbed hold of these older cables far more securely than any modern fine strand cable
Jo’b