You will first have to open the pianos lid, then stand in front of the piano and either push the music desk forward (to reveal the number) or remove the piano’s music desk from the piano. It is normally located between the bass and treble tuning pins, in the “well” spot on the harp.
The easiest place to find it is on the gold colored harp inside the piano. The serial number for Steinway pianos are located in several different places. In order to pinpoint the age of your Steinway piano, you must first locate its serial number. What is the age of my Steinway piano? How old is my Steinway piano? We get these questions on a daily basis and we can help you with this!