The microscope is signed on the tube “Bausch & Lomb Optical Co., Rochester NY” and on one of the plates covering the fine adjustment mechanism appears the patent date Oct. 3, 1876 corresponding to US patent 182,919. How does snapping a neck kill you. The serial number, which is stamped onto the bottom of the case, is 76. Bausch & Lomb Optical Co., Serial No. 7516 The microscope is furnished with two B&L objectives marked 2/3 and 1/5 each with canister, two eyepieces, the nickel plated slide carrier (patented in 1877), a sub-stage Wale type iris diaphragm, a parabolic dark field condenser, and a double objective changer.
- Bausch And Lomb Microscope Catalog
- Bausch Lomb Microscope Serial Numbers
- Bausch Lomb Serial Numbers Microscope Diagram
Until 1942 Bausch & Lomb used a standard numeric sequence for the Serial numbers for their lenses. [1]
- Bausch & Lomb's 'Physicians Microscope' 3rd and final form with serial number 21059, dating it to 1896, the last year of manufacture. Engraved on the arm is 'Pat. Which refers to the patent for Gundlach's 'frictionless' fine focus.
- Bausch & Lomb serial numbers The list of production numbers Bausch & Lomb, completed by Steve Stayton, published by kind permission of the author Page Back Page (1) 2.
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 |
![Numbers Numbers](https://mk0microscopein7xowl.kinstacdn.com/wp-content/uploads/2016/05/BLM-100M-A.jpg)
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 How to use texmod mass effect 3.
Bausch And Lomb Microscope Catalog
Letter | First Letter (year) | Second Letter (lens class) |
A | 1941 | aerial lens |
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 | lens for survey cameras |
T | 1946 | |
U | 1942 | |
V | 1944 | |
W | 1948 | |
X | 1952 | |
Y | 1956 | |
Z | 1960 |
Bausch Lomb Microscope Serial Numbers
Notes
Bausch Lomb Serial Numbers Microscope Diagram
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