Thanks Alanbikehouston. As far as I can see the brand was owned by WSI in the US and the frames were made and bought in Japan. A german company started to import those frames to the US around 78. At that point it was just one brand and the models were identical. I think due to different markets they separated their models and marketing in the following year. At one point the brand name was given up by WSI but kept and/or acquired by the german importer. This must have been at the end of the eighties if i am not wrong. What is interesting is the different designs mostly copying high end features of other makers such as Cinelli or Raleigh.