Zeiss binoculars dating numbers
Carlos Alberte, there are many lists of Zeiss serial numbers with dates of manufacture. However, serial numbers are, to my knowledge, entirely lacking. It does seem that very low numbers do exist, and it is suggested that they begin at Jena at 1,000 in about 1890, unless information to the contrary is found. As a collector, the main point is that they do tell the same story within the time span that interests one. The earliest Zeiss Anastigmat noted so far is No1,51x suggesting a possible No1000 start at Jena for camera lenses: but note an aplanat for projection seems anomalous.
I can date Carl Zeiss lenses that are post WWII by serial number. Please send me an e-mail to remind me (otherwise I will probably forget, as I will not have any access to a computer). Bulletin Board Forum, Antique Carl Zeiss Binoculars? and scroll down to Zeiss cumulative production numbers to date your binoculars. From the Lens Collector's Vade Mecum: (a) Classic Zeiss Jena numbers. this is partly licensed to others, including Voigtlaender for web cam on interstate 81 Germany.
Main point is they are very inferior to the German made article and do not survive constant use.
If the bino is a Jenoptem in the above sizes and has a six figure serial number it is not German made.
Innovations had typically resulted from trial and error experimentation; this was a costly and time consuming process that could not factor in all of the possible variables in lens making materials and design.
It would be left up to one who could employ scientific methods of study, and then devise the mathematical formulas to characterize the physics of optics to make the next important technological leaps possible.
featured member Alf Bailey talks about his landscape photography and portfolio of images. 1932 1,364,483-1,389,279 24,796 1933 1,436,671-1,456,003 19,332 1934 1,500,474-1,590,000 89,526 1935 1,615,764-1,752,303 136,539 1936 1,674,882-1,942,806 267,924 The switch to chrome finish begins at about 1.89 million.
Year Serial Numbers Number of (begin end) numbers used 1912 No173,418- 200,520 27,102 1913 No208,473-249,350 40,877 Carl Zeiss London here (see below) 1914 249,886-c252,739 2853 1915 c282,800-c284,500 1700 1916 c285,200-c288,100 2900 1917 289,087-298,157 9070 1918 298,215-322,748 24,533 1919 322,799-351,611 28,812 1920 375,194-419,823 44,629 1921 433,273-438,361 5088 1922 422,899-498,006 75,107 1923 561,270-578,297 17,027 1924 c631,500-578,297 17,000 1925 c631,500-c648,500 29,513 1926 666,790-703,198 36,408 1927 722,196-798,251 76,055 1928 c903,100-c908,150 5,050 1929 919,794-1,016,885 97,091 This is about the change over to rimset Compur shutters 1930 922,488-1,239,697 317,209 1931 1,239,699-1,365,582 125,883 First Contax lenses here.
1950 3.2m 1951 3.3m 1952 3.4m 1953 3.6m 1954 3.8m 1957 4.5m 1960 5.0m Note the variation in the number per year. Or there is a cessation of materials or labour, which can also happen in war.Equally if it has any letters in the serial number it is a fake.Genuine binos always have a seven figure serial number.I want to try and date my Carl Zeiss Jena Dekaris 10X50binoculars.
I can't locate any numbers but have found the following makings BRITTON OSLER TORONTO and NECKETTI ZAMBRA LONDON any help will be most appreciated There are no recorded serial numbers for Zeiss binoculars made in West Germany or those made by Zeiss after the fall of the berlin wall.It would then be asked of a chemist to invent and manufacture those raw materials necessary to make the new designs possible. 3 December 1888 in Jena) grew up apprenticed in the shop of Dr.In dating the instruments presented on this website, use was made of all available information.It is produced and hosted as another way of expressing gratitude to those who have helped Company Seven prosper.