Martin guitars have been a staple in Robertson's music throughout his career. Among his collection, his favorite is a rare 1919 00-45K, the only Koa 00-45 ever made. In tribute to Robbie Robertson and his impact on American music, Martin released a very limited 00-42K model. This specific guitar is number 4 of only 4 prototypes produced. It is in excellent condition, showing only moderate signs of wear, and is entirely original. This remarkable instrument offers superb sound quality, making it a prized possession for any Martin enthusiast or Robbie Robertson fan.OHSC included.