Thanks for those photo’s. Got any more ?
Makes me feel very old, 
what are now “collectors” vehicles, I use to drive for a living. both the Invincible, and Big J. As an apprentice mechanic, I use to work on the Traders, and shunt them around the yard, ( engine in / out ,on the side of the road, I fitter, 1 apprentice, 1 driver ! = 3 hrs, )
have got a load more but i need to scan them in, im pretty sure ive got another box full in the loft too
yup, the guy invincible we had on furniture deliveries for freemans, the big j on g l bakers and traders on various firms, all these trucks were everyday work horses, i had a s type bedford which i did a lot of miles in, noisy cold cab, no point in radios then, you would never hear them, holes in the floor for the clutch and brake pedals, the first tk bedford i had was the pinnacle of luxury, trucks have changed and got to be easier to operate than a car, but i miss the camaraderie from back then. 