I'm not so sure this bike is a 1962 Masi. The frame has a braze on cable guide for the front derailleur. A bike of that era would have a stainless steel casing running from a stop on the DD to a stop on the front derailleur. Of course the guide may have been added later. But the sell says nothing about additions. Though the chain stay bridge with the round lug/ferrel, which was discontinued in 1963/64, would place this frame in the right time period.
Michael Allison
New York, NY