This is a very modest Audouard advert - but it does offer a range that includes 2, 3, 4, 6 and 8 speed models.

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

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• Publisher: T.C.F. Revue Mensuelle
• Country: France
• Date: June 1919
• Derailleur brands: Audouard
• Derailleurs: Audouard