I think you all have nailed it. From everything I see here and the new pictures I have added, I am solidly convinced that this is 1954 Holdsworth Cyclone frame. (Now it has some extra personal value since the sadly-departed Alan Holdsworth was one of my very favorite "jazz" guitarists). I am interested in selling if anyone has an interest. I very much appreciate all the comments and identifiers. If there are any dissenters, I'd be interested to hear from you too.