Steingraeber & Sohne Piano Serial Nos.

Year	Serial No.	Year	Serial No.
1900	9750	1955	27000
1905	13000	1960	28000
1910	16700	1965	29710
1915	20600	1970	21420
1920	20800	1975	32770
1925	22000	1980	34180
1930	23750	1985	35500
1935	24300	1990	38000
1940	25450	1995	40500
1949	25620	2000	43000
1950	25800	2003	44500

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.