Thanks for all the replies and pointing me in the right direction! Looks like from the Bianchi catalogue they were only made for that one year 1989 Bianchi Campione D'Italia. I've been looking for a replacement wheelset for a 78' Trek that came with some out of place newer wheels. These would make more sense if they were actually made by Suntour / Sansin, although not really period correct. Going to check them out today!