Behr Bros. Piano Serial Nos.

1900	15000
1904	21600
1908	29000
1912	137000
1916	179000
1920	206000
1924	230000
1928	258000
1932	268000
1936	276000
1941	302000
1947	401000
1949	406000

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.