>>>>I'm guessing early 1980s timeframe. Lou Deeter<<<<
Wouldn't the presence of the first generation SR derailleur (seen better in the additional pics, not the ebay pics) date at least the components as earlier than that? Do you think the frame is early '80s but the components earlier? Anyone else able to date the frame? Either way, looks like a really nice find. And it just happens to be EXACTLY MY SIZE!! On no, what should I do? Hummmm....
Wayne Bingham