Eckerson Piano Serial Nos.

1907	57200
1909	61700
1911	72400
1913	80600
1915	85700
1917	92800
1919	95600
1920	97300
1924	100000
1926	104000

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.