Waldorf Piano Co. Serial Nos.

1900	3000
1903	6000
1906	52000
1909	66000
1912	89000
1915	108000
1918	125000
1921	145000
1924	185000
1926	201000

It is remarkable that data on piano serial numbers has survived so well for over a century. However, some inaccuracies are inevitable. These serial numbers are to be used only as a rough guide to a piano's age. An exact date does not make a material difference to a piano assessment. To be within 2 to 5 years is accurate enough to give an informed report on a piano.