But what a cool instrument!. I'll bet it has an interesting sound.
Dan is right-- there are many dulcimers that were made by novices that were never signed, for whatever reason. This looks to be one of them.
I saw that piece and thought it was quite interesting. (Still do!) There are a lot of pieces out there that were made one off. If the maker didn't sign it, we may never know?
I've looked all over and cannot determine who made this dulcimer. I got it through an online auction. The dulcimer was in Roanoke va.