Fisher, J. & C. Piano Serial Nos.

1900	115000
1905	126700
1915	139700
1920	145000
1925	151550
1930	159000
1935	167500
1940	178600
1946	182400
1950	187000
1955	191800
1960	198500
1965	207741
1970	215343
1975	219100
1982	219400

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.