in 1974, the top end of the Follis line was as follows:
472 ... Sronglight 99 crankset, headset, Campy Record derailleur set, Campy Tipo hubs ... Reynolds 531 DB ... comfy ride ~$400 ... at 20 lbs, off the shelf, it was one of the lightest stock bikes at the time 572 ... ~Campy Record equiped 672 ... Campy Record or Super Record throughout (?) ... very aggressive ride - competition bike ~$600
Others will know more. The 472 was a great value and a lovely bike to look at and ride.