Aldrich Piano Serial Nos.

1906	13000
1909	31000
1912	46000
1915	61000
1918	76500
1921	91000
1924	102500
1926	107100

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.