Gibson J-29 Rosewood Acoustic/Electric Guitar, Antique Natural Finish This guitar has a Sitka Spruce top and Mahogany back and sides. Also has multi-ply top binding and single Ring Rosette. The neck is made of Mahogany and round profile with 1.725" nut and a compound dovetail secured with hide glue at the 14th fret. The J-29 Rosewood has the advanced scalloped x-bracing, Rosewood fingerboard with MOP dot inlays. The also has the L.R. Bags pickup system.