This advert gives some vaguely useful information on the capacities of the elusive Huret Course Pro 83 and Huret Touriste.

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

• Publisher: L'Officiel A.C.M.
• Country: France
• Date: January 1938
• Derailleur brands: Chaluret, Huret
• Derailleurs: Huret Course Pro 83, Huret Touriste