These Unic T 340 were built by Unic in their factory in Trappes ,west from Paris, the engine was a V8 one and gearbox was a 8 range homemade. The “group” cab was tilting , same as a Fiat one which did’nt on the Italian range.
It seems that the first one is from the Multi-Transport company who still exists in Le Puy en Velay ,but mainly owns Daf,Man and Mercedes.
The freight could be Michelin tyres.