I wasted alot of time and effort giving you an explanation you don't need. It's my own fault for jumping to the conclusion that you had an integral hanger. Maybe somebody else can use the information. It comes from over 30 years of messing with French bikes

You don't have a problem. You should be able to get a hanger claw from any bike shop. If they don't have it, they can order it. It shouldn't cost more than $5. The one you have is for Simplex only.

CravenMoarhead:

Cast lugs? What are you talking about?