Originally Posted by
unworthy1
I should have added that at this point if the BB threading was some typo then it's very unlikely that we have either a French or a Swiss BB shell, so that might kick away any chance that this was made by Alain Michel.
We need better clues (or none at all)
Apparently many Alain Michel bikes have Italian threaded BB. I still wonder if it is an early model before the "Arc de Triomphe" logo was developed.