Zimmermann Piano Serial Nos.

Year	Serial No.	Year	Serial No.
1950	180001	1980	322671
1960	195001	1984	347000
1961	198001	1985	357000
1962	201001	1986	366000
1963	205001	1987	376000
1964	210001	1988	395400
1965	215001	1989	407550
1966	221001	1990	415600
1967	227001	1991	419400
1968	233001	1992	420413
1969	239001	1993	422103
1970	246001	1994	423972
1971	253001	1995	425660
1972	261001	1996	427101
1973	268001	1997	428386
1974	275801	1998	429454
1975	280501	1999	430600
1976	292501	2000	431753
1977	310001	2001	432819
1978	340001	2002	434053

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.

Back to the Piano Atlas

Seiler Piano Serial Nos.

Year	Serial No.	Year	Serial No.
1910	43419	1956	85400
1912	47197	1958	85800
1914	50053	1964	90000
1916	50775	1965	92683
1918	51561	1970	97266
1920	53671	1972	100000
1922	56163	1973	101700
1924	59578	1975	105849
1926	63327	1976	108000
1928	68498	1981	119200
1930	71725	1986	135905
1932	73137	1988	141505
1934	74100	1990	144955
1937	77200	1991	147700
1938	78400	1993	151300
1940	81100	1995	154945
1942	82208	1997	158000
1945	82699	1999	161800
1952	82700	2001	165900
1954	85000	2003	169600

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.

Back to the Piano Atlas