This Japanese bicycle catalogue, which, I think, dates from 1963, has a couple of interesting features:
All three derailleur bicycles in the main part of the catalogue appear to use the original SunTour Skitter. This is irrespective of whether they are 10 speed racing, or 10 or 5 speed touring models.
The super special racing model, shown in the supplement, appears to sport a Campagnolo Sportman derailleur. This is significant because this is the design on which Shimano based its 1965 Shimano Archery series.
