Steingraeber & Sohne Serial Nos.

 

Year	Serial No.	Year	Serial No.
1900	9750	1955	27000
1905	13000	1960	28000
1910	16700	1965	29710
1915	20600	1970	21420
1920	20800	1975	32770
1925	22000	1980	34180
1930	23750	1985	35500
1935	24300	1990	38000
1940	25450	1995	40500
1949	25620	2000	43000
1950	25800	2003	44500

These serial numbers can be used only as a reference point.
An Exact date does not make a material difference to an assessment of a piano - a year or so out 120 years ago really is neither here more there.

The idea that 100% accuracy for all piano makers over a century ago is an interesting thought - but considering that all record keeping would be hand-written and kept in large ledger books, inaccuracies are likely. These records will be as reliable as the clerks whose job it was to keep them. The digital age of barcodes and scanned labels was still in the realm of science fiction. So we have to be content with our best guess numbers.

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