Nice pics, they look very similar to the SFV's (society france vierzon), even down to that distinctive exhaust stack. I wonder if SFV licensed the design...
I have in my barn two Massey Harris Pony tractors made under license here in france, before massey harris went into business with a certain harry ferguson and came up with some little grey tractor ;) They do have a few of the early features such as a hydraulic 3 point on the later one of the two and pto take off at the rear via splined output.
I think I also have the same base tractor as the yellow track marshall, only mine is in a right state and has "JCB" written all over it! Its the 3ciii with the 4/98 engine in it.
Related ancedote, we took the kids to the local farming implement museum when they had a special day for local residents, and both our ponies were older than their display exhibits and we still use ours on a regular basis

Five year old son did ask the curator at one point why nobody had been greasing it properly too

They did have a lovely working steam traction engine, but nobody knew how to fire it up properly so it hadn't been started for 10 years since its resto. I think thats a little sad
