Gibson PB-250 ‘Mastertone’, c.1962, sunburst mahogany neck/resonator, thin black lacquered maple rim, 20 hole flathead tonering, 1 pce flange, bound rosewood fbd with pearl ‘bowtie’ inlays, bound open book phd with pearl ‘Gibson’ & torch inlays, nickel plated hardware, ‘stairstep’ Kluson tuners, resonator with multiple binding & inlaid concentric rings, classic jazzer with powerhouse projection and a popular piece for conversion to 5 string bluegrasser, EC, orig. Lifton HC