This is an old Regal 6-string, not resonator. No identifying info other than the Regal brand on the headstock and "Made in Chicago". No numbers inside anywhere that is plainly visible.

I posted a bunch more pictures up here (you need to put in the http:// part):


After clicking individual pics, you can get more detail by selecting "View full resolution". Thanks
Last edited by b0z at Sep 20, 2013,
What I would guess is its a prewar OO flat top. Probably solid spruce top and solid mahogany back and sides. It could have x-bracing, but that would be up to you to find out.

From what little I can recall, the old Regal's gave Martin parlor's a run for their money. Some even favored them to the sound of Martin parlor guitars from the same era.

If its in excellent shape throughout (like new), you could possibly get about $1k USD for it today... if you can find an interested buyer.