Almost all Falcons of a certain era say Ernie Clements - I have a total gaspipe frame which has his name. Campy shifters is a good sign though, 531 is of course going to mean that it's a high end frame. If you're hoping to sell it on, that's a bit of a risk, but if you want to build and ride the frame, I wouldn't say you were being ripped off at all.