Originally Posted by
unworthy1
yeah you would expect the components to be French, but...there were lots of FR bikes that came with JP components, and even more that got "upgraded" to cheap all-metal JP stuff when the Simplex delrin broke.
Mafac Racer brakes being the only reliable component of French bikes, it's natural that everything else might be upgraded to SunTour or Sugino. Your best bet though, as unworthy1 says, is through the examining seat tube and bottom bracket cups. And a slightly undersized steerer on the fork that won't take a Japanese, British, or Italian quill stem.