Everything is wrong with “gas pipe” frames. That Juenet isn’t a “gas pipe” framed bike. Gas pipe bikes don’t typically have lugs, much less painted and pinstriped lugs. The aluminum cotter pin crank is also a clue to the higher quality of this bike. Steel cottered cranks are common. Aluminum, not so much. I can also find lots of Franche Comte Jeunet bikes referenced on Google and most of them claim a “Reynolds 531” frame. Not gas pipe.