To my knowledge, Cazenave was a middle to low grade French bike sold only during the bike boom years, 1971 = or -. Basic steel frame , fork, rims, cottered crankset, CLB or Mafac brakes, simplex derailleurs. It is what it is. $80 would be top price for a bike in good condition. I believe that it is harder to get all those special sized French parts today - pedals, freewheel, cotter pins, bars, stem, etc.