I too am willing to give the benefit of the doubt. By most people's recollections, Exxon-Graftek is indeed recognized as the first production bike to use CF (much like Teledyne is credited with the first Ti bike at around the same time), but that doesn't mean there weren't a few boffins here and there that were toying with it years earlier and Carlton would've certainly had the resources to experiment. The material has certainly been around long enough. I remember as a kid my dad and Roger Paris, one of the premier kayak builders of the day, building a CF kayak. This was prior to the '72 Olympics and the kayak was a monocoque construction (I still have that kayak and in spite of some pretty rough whitewater use, it's held up just fine, so phooey to all those who don't think CF is tough). I don't think there's too much disconnect otherwise. The owner calls it '69 or '70 and the decal is 1970-71 so let's use a simple Venn diagram and call it a '70. He does say that parts are not original (I think the interviewer actually says "of the era" an not "of the year," which if we generalize as "70s," is probably acceptable). In any case, it's a pretty cool example of using and applying the materials that were around and appropriate for the time. I often wonder with everything "going green," will Calfee's bamboo be the next thing to go mainstream and what will we say about it 40 years from now?