Grand Concert Guitars 12- and 14-fret
Specifications Similar to Martin size OM and OOO Scale lengths: 24.9 and 25.4 inches Overall length: 40.25 inches Width at lower bout: 15.4 inches Body depth at neck: 3.35 inches Body length: 21 inches (12-fret),  19.45 inches (14-fret) Body depth at end plate: 4.35 inches
Grand Concert OM    Adirondack spruce top, cocabolo back and sides, herringbone top perimeter, paua abalone three piece rosette, cocabolo bindings with mitered white purflings sides and back, paua abalone/herringbone back stripe, fancy end graft,  headstock veneers -- front, cocabolo and holly and burled black walnut veneer on the back, Waverley tuners with ebony grasps