Kranich & Sons Piano Serial Nos.

1912	53000
1913	55000
1914	57000
1915	59000
1916	61000
1917	63000
1918	65000
1919	67000
1920	69000
1921	71000
1922	73000
1923	75000
1924	77000

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.