Clough & Warren Piano Serial Nos.

1900	76000
1902	78000
1904	80000
1906	82900
1908	85500
1910	88500
1912	92000
1914	96000
1916	100000
1918	104000

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.