I am looking at an autoharp for my wife who now plays dulcimer in DAA and DAD I play clawhammer banjo mostly in G, C, some D, and occasionally A. The harp is older but only played about an hour when originally bought some years ago The seller thinks it's a model OS 15EBH/R. Reported to have no delaminatiom, semi-hard case, tuning wrench. I suspect is was US made. I see new ones (Foreign) one in the range of $300 to $245, and used ones from $38 (Goodwill) to $190 asked. One reference on Mudcat suggested $110, assuming no case or shipping. Any guidance will be appreciated.