The LBS owner I bought this from told me he believes it is an early Chris Chance frame. I haven't found too many photos of his road bikes, but those I've seen make it look likely. It has Campy dropouts and the seat tube is 26.8. The bottom bracket is 36x24f and for a 21" frame it feels light. Wheelbase is 38.25". The yellow paint is coming off in chips, exposing rust-colored primer. The only numbers Ive found are "52" on one side of the bottom of the bottom bracket and "53" on the other. All input is appreciated!