To find the age of your piano, first locate the serial number. On Mason & Hamlin grand pianos the serial number can be found on the cast iron plate between the tuning pins under the music desk.
On Mason & Hamlin upright pianos the serial number can be located on the cast iron plate when you open the lid. This will be stamped on the plate of the piano. If you do not find the serial number in this location, look for an oval opening in the plate – just left of the center of the piano. This opening will be backed with a piece of wood and the serial number stamped.
After finding the serial number on your piano, then match the numbers with the appropriate year of production. See list below:
| 1885 | 1,885 | 1926 | 33,400 | 1967 | 71,006 | ||
| 1886 | 2,700 | 1927 | 34,900 | 1968 | 71,944 | ||
| 1887 | 3,500 | 1928 | 36,700 | 1969 | 72,945 | ||
| 1889 | 5,000 | 1929 | 38,000 | 1970 | 74,263 | ||
| 1890 | 5,700 | 1930 | 39,600 | 1971 | 74,791 | ||
| 1891 | 6,400 | 1931 | 41,000 | 1972 | 75,534 | ||
| 1892 | 7,000 | 1932 | 41,200 | 1973 | 76,447 | ||
| 1893 | 7,700 | 1933 | 41,400 | 1974 | 77,493 | ||
| 1894 | 8,400 | 1934 | 42,000 | 1975 | 78,730 | ||
| 1895 | 9,100 | 1935 | 42,600 | 1976 | 80,019 | ||
| 1896 | 9,700 | 1936 | 44,300 | 1977 | 81,100 | ||
| 1897 | 10,200 | 1937 | 45,200 | 1978 | 82,731 | ||
| 1898 | 10,800 | 1938 | 45,500 | 1979 | 84,184 | ||
| 1899 | 11,400 | 1939 | 46,800 | 1980 | 85,853 | ||
| 1900 | 11,800 | 1940 | 48,000 | 1981 | 87,013 | ||
| 1901 | 12,000 | 1941 | 50,600 | 1982 | ——– | ||
| 1902 | 12,800 | 1942 | 52,000 | 1983 | 88,584 | ||
| 1903 | 13,600 | 1946 | 53,000 | 1984 | 88,808 | ||
| 1904 | 14,200 | 1947 | 53,500 | 1985 | 89,393 | ||
| 1905 | 15,000 | 1948 | 55,000 | 1986 | 89,491 | ||
| 1906 | 16,000 | 1949 | 56,400 | 1987 | 89,589 | ||
| 1907 | 17,000 | 1950 | 57,800 | 1988 | 89,650 | ||
| 1908 | 18,000 | 1951 | 58,900 | 1989 | 89,806 | ||
| 1909 | 18,600 | 1952 | 59,600 | 1990 | 90,000 | ||
| 1910 | 19,100 | 1953 | 60,400 | 1991 | 90,099 | ||
| 1911 | 19,600 | 1954 | 61,100 | 1992 | 90,249 | ||
| 1912 | 20,000 | 1955 | 61,800 | 1993 | 90,416 | ||
| 1913 | 21,000 | 1956 | 62,400 | 1994 | 90,488 | ||
| 1914 | 23,000 | 1957 | 63,250 | 1995 | —— | ||
| 1915 | 24,000 | 1958 | 64,100 | 1996 | 90,600 | ||
| 1919 | 28,000 | 1960 | 65,200 | 1997 | 90,618 | ||
| 1920 | 29,000 | 1961 | 66,016 | 1998 | 90,707 | ||
| 1921 | 29,600 | 1962 | 66,604 | 1999 | 90,845 | ||
| 1922 | 30,200 | 1963 | 67,478 | 2000 | 90,988 | ||
| 1923 | 31,300 | 1964 | 68,309 | 2001 | 91,148 | ||
| 1924 | 31,900 | 1965 | 69,100 | 2002 | 91,417 | ||
| 1925 | 32,700 | 1966 | 69,949 | 2003 | 91,653 |