A beautiful and fine-sounding example of the rare Martin 5K ukulele. Amid the rising popularity of Hawaiian music in the 20's and 30's, C.F. Martin introduced the 5K Soprano Ukulele embellished in the tradition of style-45 guitars. This model features a highly-figured Koa top, back, and sides and ornate abalone. The example is in excellent condition with no repairs or damage to note!