Bausch Lomb Serial Numbers Microscope
admin 27.10.2019
Diablo mongoose 2 paintball gun. Until 1942 used a standard numeric sequence for the for their lenses.
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- This is a 19th century Masterpiece microscope made by Bausch & Lomb Optical Co. New York, Rochester NY, Chicago with Serial number.
Bausch Lomb Microscope Serial Numbers
Saegmuller moved the business of Fauth & Co., G. Saegmuller, Prop. From Washington, D.
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. The serial number, which is stamped onto the bottom of the case, is 76.
Serial Numbers Cracks
To Rochester, New York in May 1905, opening in Rochester in June 1905. The new company, Bausch, Lomb, Saegmuller, apparently continued using the same serial number sequence as had been employed at Fauth & Co., with a transfer of name somewhere between serial number 2,400 and 2,600. The serial number transition between Bausch, Lomb, Saegmuller and the Triple Alliance instruments, which took place on January 1, 1908, took place at about serial number 6,750, although it seems extremely doubtful that Bausch, Lomb, Saegmuller produced more than 4,000 instruments in two and a half years. No explanation can be given for this disparity at this time, unless Bausch, Lomb, Saegmuller also numbered all its military output with its serial numbers. (Later military production used different serial numbers.) The highest recorded serial number on a Bausch & Lomb surveying instrument is just over 12,000 on an instrument owned by Bausch & Lomb. If Bausch & Lomb manufactured instruments under its own name for a ten year period, the output would be approximately 550 instruments per year, but it must be noted that some instruments have two serial numbers. For example, the trough compasses on Bausch & Lomb's plane table alidades are also serial numbered.
As a result, it's most probably fair to say that Bausch & Lomb's output averaged about 400-500 instruments per year. Thomas Garver Approximate Year of Manufacture for Surveying Instrument: 1908 6750 1909 7600 1910 8200 1911 8600 1912 8900 1913 9500 1914 9800 1915 12900 (?).