The Advanced Jumbo is the guitar Gibson built in 1936 to answer the dreadnought, and the answer was rosewood, a 25.5" scale and a 16" body. It lasted four years in production and has been chased ever since, because that combination does something neither a J-45 nor a D-28 quite does: the scale length puts tension behind the notes and the rosewood gives them somewhere to go.
Rosewood back and sides with a thermally aged red spruce top, Heavy Aged. Single-ply binding top and back, which is the correct restraint for the model.
Mahogany neck in the Historic AJ profile at a 1.725" nut, 19 frets on rosewood with mother of pearl diamonds and arrows.
SPECIFICATIONS
Serial: 23224003
Body Shape: Advanced Jumbo
Back and Sides: Rosewood
Top: Thermally aged red spruce
Binding: Single ply, top and back
Finish: Heavy Aged
Neck: Mahogany, Historic AJ profile
Nut Width: 1.725"
Scale Length: 25.5"
Fingerboard: Rosewood
Frets: 19
Inlays: Mother of pearl diamonds and arrows