I guess that model would be like the top of the lower mid grade,
with like the knockabout & high gun on the lower end, this type of gun in the middle, then up through their sideplated BLocks, 20,25,30 on up the the eagle grade.Then into the best Sidelocks etc
But looking at those fences, its hard to say mid grade, isn't it?

They are so well done...the wood looks like a diamond in the rough....
I am a big fan of these older Francottes...they are just gorgeous
cheers
franc