I'm trying to gather some information on a Carlton Flyer model that my brother-in-law no longer rides and is thinking of getting rid of. The serial number is "N4212" and the information I am getting places this bike somewhere in the mid 1960's; anyone out there with a better sense of this than I have? It is Campy equipped (cranks, seatpost, hi-flange hubs, derailleurs, etc...), Weinmann brakes and white lever hoods with "Carlton" embossed in the rubber. I will try to get some photos posted soon. Thanks!