How to check an “Age of Piano”

* In generally for Up-right piano you may open the top cover, to check the Seriel Number .
* Secondly you may check the bottom , they come with “Two Pedal ” or “Three Pedal”
for Two Pedal Japan Piano the age will be more than 40 years (But now a day the factory will modify it to 3 pedal)
* Third you may check the “IRON FRAME” of the piano , for those day a lot of Piano Technology ,they use a small pieces of iron frame and even a shortage string.