Thurmer F. Piano Serial Nos.

Year	Serial No.
1900	19500
1905	27800
1910	37700
1915	49900
1920	52700
1925	57000
1926	57500
1927	58000
1928	59600
1929	60300
1935	67000
1940	72700
1952	73800
1973	81500
1977	81715
1985	82680
1990	83330
1993	83530

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.