I talked to Vianelli's son ... very nice chap, the business is still going, but Carbon frames now, and a store...typical small family business.
All his steel frames were custom orders in terms of geometry and lacquer work, hence no catalogues available.
This one is a very stiff race frame and not not for long leisurely rides! I have to replace the monoplaners with record callipers and the C Record levers with NR ( SR cost a fortune now) , Probably deserves better tyres than the Michelins but it's hard to find good NOS amber walls...I like Veloflex but they do tend to shred a bit. Having said that, I've a super light pair of sprints with Martano rims, probably the way to go! Thanks for the compliments, mate.