This scan was was sent to me by a correspondent in Japan who tells me that it cxomes from a Japanes Bicycle Magazine published in 1965. It is interesting because it shows the DnB 66 derailleur. I had previously thought that this was launched in 1966 for obvious reasons.

Weirdly, the advert is in english.

• Publisher: Unknown Japanese bicycle magazines
• Country: Japan
• Date: 1965
• Derailleur brands: DnB
• Derailleurs: DnB 66