Good to know! Those pictures are actually from the original Craigslist ad and make the bike look cleaner than it really is, there's a lot of caked on grease and dust that needs to be taken care of. The bike should clean up very nicely though. Component-wise all it really needs is new cables, but I have plans to switch out several parts with newer, more wife-friendly ones. I know she's going to hate the friction shifting so I'm considering upgrading it to an indexed 14-speed. Ideally I'd like to keep it looking as vintage and original as possible. Should be a really fun winter project!

I'm new to pre-1990's bikes and all this sleuthing on the Sutton's origins really has me fascinated. @uncle uncle, I see what you mean, reading around mytenspeeds it seems like best guesses from component/frame clues is the best we can do. We got the bike because it was relatively cheap, fit my wife, and looked cool, but finding out that it's good quality and an obscure model makes me glad we picked it up. Thanks to everyone pitching in their knowledge.