Ok, you could fit what I know about this on the head of a pin but I will try to do my job. This is a very well made early bass from PRS made here in the good old U S OF A. The top is a nice figured top and this bass is still in excellent condition. It is fretless with an ebony fingerboard. I do not know if this started life as a fretless bass, I have some doubts. The bass does not seem heavy and it is very easy to play either in or out of pitch.