The age of your Steingraeber instrument can be determined by taking a look in our archive. This table will give you an initial indication. However for exact details, please contact our archive service for more in-depth research into our historical production books.
Year
1860
1865
1870
1875
1880
1885
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
Number
1000
1500
2000
3000
4000
4700
5500
5800
6050
6350
6700
7000
7350
7900
8450
9200
9750
10700
10950
11650
12350
13000
13800
14500
15300
16000
16700
17500
18100
18800
19500
20600
20800
20900
21050
21450
21600
22000
22350
22800
23300
23500
23750
23800
23900
24000
24150
24300
Year
1936
1937
1938
1939
1940
1949
1950
1951
1952
1953
1954
1955
1960
1965
1970
1975
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
Number
24450
24700
24900
25300
25450
25620
25800
26200
26400
26600
26800
27000
28000
29710
31420
32500
33290
33540
33800
34180
34470
34760
34950
35160
35500
36000
36500
37000
37500
38000
38500
39000
39500
40000
40500
41000
41500
42000
42500
43000
43500
44000
44500
44750
45000