Matthaes, Carl, Piano Serial Nos.

1949	27349
1952	28830
1955	30587
1958	32634
1961	34905
1966	39605
1970	42925
1973	45480
1977	48540
1980	51100
1983	52875
1985	54335
1988	56475
1992	56510
1996	56540

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.