Dörfler D7A Bass Bow 3/4, Bass Bow, Size: 3/4, German design, Improved massaranduba stick, Octagonal, Ebony frog with mortise and slide, Simple eye, Wire winding, Bass Bow, Size: 3/4, German design, Improved massaranduba stick, Octagonal, Ebony frog with mortise and slide, Simple eye, Wire winding, 'Werner' stamp