I believe the piano is a Kawai K-15 model but I am not certain. I am sorry that I did not get the model and serial number of the piano before I put it into storage. I have never sold a piano before. I have checked on its value in the past and know that its valued at 4500. I am taking a few off considering I can't display its model and serial. I personally guarantee that this is a legitimate KAWAI and that it was bought new. This piano was kept in perfect condition and bought new in 2009. It was tuned often, played often, and kept in ideal conditions (My father is a piano tuner and maintained it often as well as other tuners when he was not in town)