nah. I just have one and have been fretting for the last year about what it is. There is a bunch of disjointed information over on CR, and scattered throughout the internet. Whenever a Colnago of the right vintage comes up on eBay I ask the seller for the serial number. I save pictures that I find on the internet with a date guess. There's a guy on CR right now that is trying to pull together a comprehensive timeline for older Colnagos, but I dunno if us common folk will ever see the end result.