Cyclo are widely known in Britain, being fitted on BSA, Humber (misspelled), Sunbeam and Hercules bikes amongst other.

This low-res, deliberately smudged, scan is from the web site of the excellent Musée d'Art et d'Industrie in St-Étienne.

---

• Publisher: L'Industrie des Cycles et Automobiles
• Country: France
• Date: November 1936
• Derailleur brands: Cyclo, BSA, Hercules
• Derailleurs: Le Cyclo