Mavic Monthlery rims, named for a is a suburb of Paris,
and site of a race track where the French Grand Prix was held in the
1920s and '30s.
There were 2 models Route and Legere models.
Route(s) were 21.5mm in width and weighed approximately 420gm.
The Legere modewl was 20mm wide and weighed 310mm.
There were also I believe variations of the above (anodized gold?)
available.
Its a precursor of the GP4 tubular rim, very strong. Very apropos for PX10,
or other good french racing bike.
Marty