This Huret advert should be contrasted with the one from September 1931. The difference is plain to see. A first-ever derailleur has been added to the Huret range.

(Source gallica.bnf.fr/ Bibliothèque nationale de France)

• Publisher: L'Officiel A.C.M.
• Country: France
• Date: May 1932
• Derailleur brands: Huret
• Derailleurs: Huret Course (1st style)