Gibson, a "model MB-3" mandolin-banjo, 1920s, USA.
Serial number 11909-20. Body in maple, neck in maple, fingerboard in ebony with 18 frets. Angled/diagonal "The Gibson" logo. 22 nickel-plated "brackets", the skin marked "Ivory, Hard white calf, national rawhide MFG Co, Chicago Ill, Professional Quality". Length approx. 59.5, width 24.5, height 6.5 cm. A hard case with green plush lining is included.
Age-related wear, marks, chips, scratches, later mounted bridle, probably a later saddle. Not fully examined. Not function tested.