PIANO NUMBERS AS A GUIDE TO DATE (Updated November 2017) The majority of pianos cannot be reliably dated by their serial numbers, and you only have to.

Library Of Mana Antenna Filesanywhere. Once you know the name brand of your piano, you will need to find the serial number. Step 1: The serial number is usually found on the plate of the piano between the bass and tenor strings. It can also be found on the top of the piano when you open the lid on Upright Pianos. You are looking for a number like those shown here. Serial Numbers on Upright Pianos Serial Numbers on Grand Pianos These are usually found on the “Plate” near the tuning pins between the bass and tenor sections as shown below.