Bausch & Lomb serial numbers
Revision as of 23:12, 24 February 2011 by Heritagefutures (talk | contribs) (Created page with "Until 1942 Bausch & Lomb used a standard numeric sequence for the Serial numbers for their lenses. <ref>Sourced from a discussion thread at http://forum.mflenses.com/view...")
Until 1942 Bausch & Lomb used a standard numeric sequence for the Serial numbers for their lenses. [1]
Bausch & Lomb until 1942 (numeric)
| Serial nº | Year |
| 1 | 1876 |
| 150 | 1877 |
| 350 | 1878 |
| 800 | 1879 |
| 1100 | 1880 |
| 1450 | 1881 |
| 1750 | 1882 |
| 2000 | 1883 |
| 2500 | 1884 |
| 3000 | 1885 |
| 3800 | 1886 |
| 4500 | 1887 |
| 5300 | 1888 |
| 6375 | 1889 |
| 7600 | 1890 |
| 9200 | 1891 |
| 10000 | 1892 |
| 11700 | 1893 |
| 13900 | 1894 |
| 17000 | 1895 |
| 20000 | 1896 |
| 25000 | 1897 |
| 28000 | 1898 |
| 30000 | 1899 |
| 32000 | 1900 |
| 33000 | 1901 |
| 35000 | 1902 |
| 40000 | 1903 |
| 45000 | 1904 |
| 52000 | 1905 |
| 57000 | 1906 |
| 63000 | 1907 |
| 69000 | 1907 |
| 76000 | 1909 |
| 82000 | 1910 |
| 86000 | 1911 |
| 89000 | 1912 |
| 95000 | 1913 |
| 98000 | 1914 |
| 104000 | 1915 |
| 110000 | 1916 |
| 120000 | 1917 |
| 129000 | 1918 |
| 135000 | 1919 |
| 140000 | 1920 |
| 148000 | 1921 |
| 155000 | 1922 |
| 160000 | 1923 |
| 170000 | 1924 |
| 175000 | 1924 |
| 180000 | 1925 |
| 185000 | 1926 |
| 190000 | 1926 |
| 195000 | 1927 |
| 200000 | 1928 |
| 205000 | 1929 |
| 215000 | 1929 |
| 225000 | 1930 |
| 230000 | 1931 |
| 235000 | 1932 |
| 240000 | 1934 |
| 244000 | 1935 |
| 247000 | 1935 |
| 250000 | 1936 |
| 260000 | 1937 |
| 270000 | 1938 |
| 280000 | 1939 |
| 290000 | 1940 |
| 300000 | 1940 |
| 310000 | 1941 |
| 320000 | 1942 |
Bausch & Lomb from 1942 (alphanumeric)
From 1942 Bausch & Lomb used an alphanumeric code for the lenses, where the first letter encodes the year and the second letter (apparently) the class of lens
| Letter | First Letter (year) | Second Letter (lens class) |
| A | 1941 | |
| B | 1945 | |
| C | 1949 | |
| D | 1953 | |
| E | 1957 | |
| F | 1961 | photographic lens |
| G | 1963 | |
| H | 1959 | |
| J | 1955 | |
| K | 1951 | |
| L | 1947 | |
| M | 1943 | |
| N | 1962 | |
| P | 1958 | |
| R | 1954 | |
| S | 1950 | |
| T | 1946 | |
| U | 1942 | |
| V | 1944 | |
| W | 1948 | |
| X | 1952 | |
| Y | 1956 | |
| Z | 1960 |
Notes
- ↑ Sourced from a discussion thread at http://forum.mflenses.com/viewtopic.php?t=20524 mflenses].
