Finding Your Piano Serial Number (to Date the Age)

All you need is the piano make and the serial number and then you can figure out (in most cases) when your piano was built. However it's difficult sometimes to find the serial number on your piano. This video should help out.
"Because Life Is Better In Tune"
www.TheGildedPiano.com

[@1mmm51]

How do you get the sostenuto pedal to work on an upright piano?