Kindler & Collins Piano Serial Nos.

1911	19000
1913	23400
1915	27900
1917	30400
1919	42000
1921	55000
1923	58000
1925	52000
1927	68000

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.