1901 | 2500 |
1905 | 7100 |
1910 | 16100 |
1915 | 32100 |
1920 | 42000 |
1925 | 59000 |
1930 | 71400 |
1935 | 82000 |
1940 | 95000 |
1942 | 100000 |
1948 | 105000 |
1950 | 109000 |
1955 | 128000 |
1960 | 150036 |
1970 | 500001 |
1976 | 501568 |
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.
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