Sigma DM-15 From the 15 Series A classic guitar, dreadnaught size, with a solid Mahogany top producing deep bass tones and clear trebles, Sigma are well known for their value for money and build quality, historically released in the 1970's as a line of affordable guitars by C.F.Martin to compete with the affordable guitars being produced in Japan. In blind tests these guitars rate highly with some of the biggest names in the game! Body Size: D-14 FretConstruction: Dovetail Neck JointTop: Solid MahoganyBack & Sides: MahoganyNeck: Mahogany, Low ProfileNut & Saddle: BoneFingerboard & Bridge: MicartaScale Length: 25.4” (645 mm)Neck width at nut: 1-11/16” (42,9 mm)Truss Rod: Two way Truss RodTuning Machines: Chrome, Grover diecastFinish: SatinStrings: D´Addario EXP16 Other 15 series models are availble to order.