Haines & Co. Piano Serial Nos.

1900	37000
1905	42000
1910	47700
1915	50600
1920	58300
1925	66500
1928	70200
1932	106000
1936	135000
1940	183000
1942	204000
1947	205000
1949	257000

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.