Allison Piano Serial Nos.

Year	Serial No.	Year	Serial No.
1890	21000	1924	48400
1892	22600	1926	49800
1894	24200	1928	50800
1896	24700	1930	52000
1898	25800	1932	53000
1900	29000	1934	53800
1902	30000	1936	54800
1904	32000	1938	55800
1906	34000	1940	56800
1908	36000	1942	57000
1910	38000	1947	57100
1912	40600	1949	57520
1914	41600	1951	59000
1916	42800	1953	57900
1918	44400	1955	58095
1920	46000	1957	58300
1922	47200	1959	58700

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.

Gaveau Piano Serial Nos.

Year	Serial No.	Year	Serial No.
1900	33800	1950	102000
1905	43000	1952	104000
1910	51500	1954	105500
1915	61900	1956	107100
1920	66100	1958	108653
1922	69400	1960	110380
1924	74600	1962	111741
1926	80400	1964	112811
1928	84300	1967	114012
1930	88400	1970	115662
1932	90200	1972	116800
1934	92500	1974	118000
1936	93500	1976	119200
1938	94500	1978	120300
1940	95100	1980	121100
1942	96600	1982	121800
1944	97300	1984	122100
1946	98100	1986	122300
1948	100000	1988	122500

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.

 

Willard Piano Serial Nos.

1900	23000
1902	39000
1904	56000
1906	76000
1908	90000
1910	109000
1912	127000
1914	145000
1916	163000
1918	180000
1920	196000

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.