Apollo Piano Serial Nos.

1901	2075
1903	5700
1906	10000
1909	14500
1912	19600
1915	24400
1918	32800
1921	45000
1924	58000
1927	80000
1930	106000
1933	126000
1936	135000
1939	155000

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.