Foerster Piano Serial Nos.

1900	10500
1910	23920
1920	32920
1930	64200
1940	72120
1949	84600
1952	86400
1955	89300
1958	93500
1961	98000
1963	106000

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.