Martin's striking 15 Series is comprised of instruments constructed exclusively of solid mahogany. This includes the back, sides, neck, and top. Choose from models with attractively toned pre-war top shading or the simple, natural, rich, satin finish. Construction details include A-Frame "X" braces made of 5/16" Sitka spruce, a modified low oval shaped neck, and a bone nut. Fingerboard position inlays feature short pattern diamonds & squares, and the top incorporates a beautifully understated single ring rosette. The 15 Series offers a visually distinctive, solid wood guitar at an affordable price.