Kranich & Bach Piano Serial Nos.

1900	35000
1905	44000
1910	50000
1915	56000
1920	60900
1925	66700
1930	70400
1935	72500
1940	74600
1946	75000
1950	77200
1955	81800
1960	86200
1965	91600
1971	95000
1975	97100
1981	98000

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.