For sale is a 2003 Gibson Master Model F-5 Fern Mandolin Danny Roberts Signed with the original case. This mandolin is in very good condition and in perfect working order. There are some light scratches. Overall, I would rate the condition a solid 8.5 out of 10. There are no cracks, repairs, or major issues. The neck is straight with no issues. The original frets are in excellent condition with no wear. The original case works great.