The Coolest Chainstays On the Planet

And, they come from a 1974 Masi Prestige which the seller describes as, "Reportedly one of only four made, this cycle was presented at the 1974 Milan Show. Built in partnership with Faliero Masi, Alberto Masi revived the milled and reinforced chainstay design that Faliero used in the 60's on time trial cycles. This cycle is fitted with a complete Masi-modified, Campagnolo Super Record component group, including custom-milled hubs, brake capliers, brake levers, and shifters."

From another source that I respect I'm infomed that these are also referred to as "Fiera" (Fair) model(s) and that it's likely that there are more than four.