Thanks for the update! I'm almost certain to bug you and ask you again! ;-) I'm pretty curious. Unfortunately, he charges for appraisals - which is very, very understandable in his position. But, once it has been identified, I'm curious as to how the valuation plays out. I'd also expect it to take quite some time, but figured I'd check. When we know more about it, I'll probably want to do another article. If you've not done so already, you may wish to inform him that it has had some repairs. This is a long-shot, but the person who repaired it *might* actually have done a bunch of research on the guitar's origin. There's often additional markers inside the guitar. There's a very slim chance that they know more about it, but it's a chance. It'd be funnier than hell to find out it's exceedingly rare AND valuable. Rarity isn't always indicative of market value. For example, some are rare 'cause they suck or they lack value because the luthier isn't known. However, as previously mentioned, this isn't my domain and I'm not really willing to speculate on the value. If it were a regular guitar, even if relatively obscure, I could probably offer a reasonable valuation estimate. This one is well outside of my wheelhouse. I've bought a bunch of guitars, but I've purchased zero harp guitars.