This Fuji advert from 1967 has a number of slightly interesting features:
The 'racing' bike with drop handlebars looks to be fitted with a Huret Svelto (2000) derailleur. This may be one manufactured, or at least assembled, by SunTour in Japan.
The straight handlebar bike has a strange looking derailleur that I do not recognise. Could it be the elusive Chair model?
This bike also has a massive gear lever that appears to be mounted on the handlebars sideways. What in heaven's name is this?