The Cyclo Benelux Mark 8 Tourist was the touring version of the ubiquitous Cyclo Benelux Mark 7. Like the Mark 7, it shows how the derailleur matured as a product as the market moved from post-World War II austerity to ‘never having it so good’. There is an outbreak of coloured branding and lush chrome. Definitely a product aimed at a increasingly discerning and affluent consumer.
I was surprised at how many of the parts of the Mark 8 Tourist were NOT shared with the Mark 7. The pulley cage and tension pulley are obviously different, but so is the main arm, the b-pivot adjuster plate, a whole host of parts of the sliding rod mechanism and the main spring. There are surprisingly few economies of scale here.
I am aware of three generations of the Cyclo Benelux Mark 8 Tourist, with minor cosmetic differences, as follows:
As you will see from the dates that I have guessed, I vaguely think that this is the chronological order in which these versions appear - but I am not completely sure. I also think that the images that Cyclo used in its catalogues are not necessarily a reliable guide to dates. I think that old images were frequently reused.
This is a hard worked, but still tidy, example of the second version listed above. It is a 5-speed 3/32" or 4-speed 1/8" version.
In some of the photos, I have disengaged the pulley cage spring to allow the derailleur to adopt a more normal position.