Very interesting. Never seen back braces artistically designed, possibly suggesting the luthier put great care and treated this as a high end instrument. Try getting a mirror and checking out the top bracing pattern as well as any markings/writing you may find on the soundboard. Also try to compare wood grain on the inside and outside of the back and sides to see if it is solid or laminate Indian Rosewood. Post a clear picture of the rosette as that could give a strong clue as to who the maker is.
Most importantly, if the guitar sounds great to you, then you've scored a great deal for $30, regardless of who made it. Even if it was constructed by a nobody, it is the end result that counts. If it has antique value, even better.
"Success grants its rewards to a few, but is the dream of the multitudes.
Excellence is available to all, but is accepted only by a few." - Christopher Parkening