Mehlin & Sons Piano Serial Nos.

1900	19000
1905	24000
1910	29000
1915	34000
1920	40000
1925	42200
1930	43300
1935	43880
1940	44600
1942	45000
1946	45600
1950	48100
1955	56536
1960	60100

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.