This is an 8 string, double course, 23" scale, Semi Hollowbody, Tenor I have.here, here and here) other than having similar pickups, but if you check out this blog post showing a collection of G L Stiles guitars, you'll see that the hollowbody electric 2nd from the right does share some features in common with your tenor guitar.
It's a Stiles and I have not been able to find any real information about it. Perhaps you would be willing to post this on your site?
Let me know if you have any questions about it. I've been playing it and it has a really wonderful sonorous and unique voice.
Actually, because of its 8-string nature, I'd be inclined to refer to this as a mandocello (a mandocello is to a mandolin as a cello is to a violin) rather than a doubled-course tenor guitar. However, I guess it's up to you and whatever tuning you decide to use.
Although it is undoubtedly a G L Stiles guitar (or mandocello or whatever), I'm slightly puzzled that the headstock seems to show the name "J L Stiles", but maybe the "J" and the "L" are just design elements of the headstock inlay and are not supposed to represent letters.
G L Wilson
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