Where can I find the model or serial number of my piano?
Acoustic pianos: stamped on the frame. Digital pianos: printed on the name plate under the keybed.
On an acoustic piano, the model number and serial number are stamped on the frame. On an upright piano, the model number is on the right-hand side of the frame, and the serial number is stamped around the middle of the piano, roughly in line with the middle octave.
On a grand piano, the model number is on the right-hand side of the front of the frame in line with the 7th octave. The serial number is located just to the left of the model number in most cases.
On a digital piano, the model and serial number are printed on the name plate on the underside of the keybed.