This is the earliest advert that I have found featuring the Huret Dural Competition. The graphic treatment is a slightly clunkier, but possibly slightly more charming, take on the contemporary Simplex logo. A bit like Huret's derailleurs really.

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

• Publisher: L'Auto
• Country: France
• Date: July 1942
• Derailleur brands: Huret
• Derailleurs: Huret Dural Competition