Pre-owned Martin OM-18 Authentic just into the shop on trade! If you've been looking for one of these (discontinued) guitars, here's a chance to get one that's been played, remains in very good condition, and has an excellent setup. As far as Mahogany / Adirondack OMs go, and especially those interested in piggybacking on the pre-war Martin design, well -- Martin still makes a great one! Woody, crisp, and dry sounding, this guitar has plenty of guts for flatpicking and a gorgeous, present voice for fingerstyle. Priced with its original hard case, also in good condition.