In this advert, dated October 1950, Campagnolo is advertising a rod-type 'speed changer with no chain tensioner'. This is in contrast to their advert of January 1951 which advertises 'front and rear derailleurs'. A new era is about to begin.

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

• Publisher: L'Officiel A.C.M.
• Country: France
• Date: October 1950
• Derailleur brands: Campagnolo
• Derailleurs: Campagnolo Paris-Roubaix?