I rode them in late '80's/early'90s. I agree with the others who have weighed in on this that they were similar to Vittorias from the same era, and could have been made by the same manufacturer. I used them mostly as training tires, and they worked fine, but I seem to remember that the base tape would separate from the tire after a while. That may have been because I used the low-end trainers. Anyhow, I never rolled one. I still have some old ones and they still hold air.
Bob Oast
Asheville, NC