CF Martin : Steel String Acoustic Guitars | Buy your D-18GE 1934 Golden Era Acoustic Guitar at Samash.com. We offer financing options! CF Martin takes you back to 1934, when they set the standard for acoustic guitars in America with their groundbreaking designs for tone and playability. Made to those original designs, the D-18GE has solid genuine mahogany back and sides, featuring the Golden Era back braces. The top is Adirondack spruce for that 'classic' sound. The solid genuine mahogany neck i