From Gibson: "During a time when cultural optimism was low, Gibson dreamed up a new line of "advanced" instruments; included in those models was the Advanced Jumbo. Due to low production numbers from 1936-1939, this model largely flew under the radar even though it was a supreme sounding and performing instrument. The Gibson Acoustic Custom Shop is pleased to once again offer the Gibson 1936 Advanced Jumbo, outfitted with a thermally aged Adirondack red spruce top, rosewood back and sides, and premium Waverly tuners. The 1936 Advanced Jumbo brings back all the tone and prestige that made these such a sought-after instrument by artist and collectors."This instrument is like new. Includes OHSC.  Top: Thermally Aged Red Spruce Back and Sides: Rosewood Neck/Fingerboard: Mahogany/Rosewood Bridge Material: Rosewood Tuners: Waverly Radius: 12" Neck Profile: Historic AJ Neck Depth: 0.936" - 1.052" Scale Length: 25.5" Nut Width: 1.746" String Spacing at Saddle: 2.155" Contains Brazilian Rosewood (Y/N): N Electronics: None Case: OHSC