Dvorgrle, top, end, and perspective views, mechanical drawing

Drawing caption: Dvogrla [dvorgrle] owned and played by Peter Boro.
Original in Music Library, University of California, Berkeley.
Forms part of a group of field materials documenting Peter Boro performing Croatian music on the gusle and misnice on May 7 and December 20, 1939, collected by Sidney Robertson Cowell in San Mateo, California.