Briggs Piano Serial Nos.

1900	21400
1903	24800
1906	28900
1909	35600
1912	43600
1915	52000
1918	63000
1921	78000
1924	92000
1927	100000

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.