Lindenberg Piano Co. Serial Nos.

1905	3000
1908	12000
1911	21000
1914	30000
1917	39000
1920	48000
1923	55000
1926	62500
1928	66000

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.