Minus the more elaborate integrated rear brake noodle, it looks a lot like an early '90's Giant chromoly frame, but the search spider on the internet web tells me Giant made frames only went from 1980-86. Either way, I find those Giants to be great all-rounders and very adaptable, and I imagine this would be the same (I can't do flat bars anymore either, so I have a Nitto Albatross on mine—total change of riding position, but it feels like it was meant for it). I agree with the other value estimates, but that's good or bad depending on what side of the transaction you're on. I have a couple of bikes that are worth some money, but if I could only keep one, I'd keep my USAAF bike (Giant Innova). I even bought a second one to turn into an electric.