Maclean featherweight ‘59?

Frame:
Reynolds 531

Fork/Headset:
Alatet

Crankset/Bottom Bracket:
FB

Pedals:
Williams?

Drivetrain/Cog/Chainring/Chain:
FB

Derailleurs/Shifters:
Front - simplex JUY competition Rear - Simplex JUY 543 Shifter - Simpex JUY Dijon

Handlebars/Stem:
GB MAES bends GB 531 chromed stem

Saddle/Seatpost:
Brooks B15

Brakes:
GB Hiduminium

Front Wheel/Hub/Tire:
Weinmann rim Rare large flange Shellwin hubs

Rear Wheel/Hub/Tire:
Weinmann rim Rare large flange Shellwin hubs