Erard Piano Serial Nos.

Year	Serial No.	Year	Serial No.
1920	108000	1956	130400
1923	111000	1958	131280
1926	115000	1960	131815
1928	117600	1962	132000
1930	120000	1964	132370
1932	122000	1966	132541
1934	123500	1968	132833
1936	124500	1970	133129
1938	125500	1972	133550
1940	126200	1974	134200
1941	126600	1976	134800
1945	127000	1978	135200
1946	127300	1980	135600
1948	127800	1982	135900
1950	128300	1984	136100
1952	129000	1986	136200
1954	129600	1988	136260

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.