A 1907 martin, model 00-28 Serial Number 10723 flat top acoustic folk guitar, solid spruce top, rectangular ebony bridge unit, cedar wood neck, ebony fretboard, nineteen frets, neck joins body at twelfth fret, pearl inlays on fifth, seventh and twelfth fret, features include ivory binding and herringbone trim, includes ono original hardshell case -- 38 1/8in. long.