This company continued to operate independently in the US until 1972. So, it only has four air:glass interfaces (compared to an Artar or WF Ektar that have eight air:glass interfaces and benefit much more from coating).Until WWI many great companies cooperated with Goerz. Although coating reduces flare and increases contrast, uncoated Dagors are perfectly usable. I've even seen one in a box that contained a little slip of paper stating that it had been coated by Burke and James. I have seen genuine Goerz lenses that were retrocoated by B&J. If it was retrocoated, the coating (and shutter mounting for that matter) may have been done by B&J. So, if it is coated (it doesn't look like it is in the attached photo, but it's impossible to tell for sure form a small jpeg image), it was coated years later - possibly at the same time the lens was mounted in the shutter. Also, the date of manufacture of the lens pre-dates commercially viable coating technology by many years. As others have stated, the shutter is not original. The specific lens pictured in this thread is definitely decades older than the shutter it is presently mounted in. There may have been other permutations, especially in the very early years of the American Goerz company, but those are the main ones I know of off the top of my head.Īs I stated above, any Dagors assembled from loose elements by Burke and James are labeled as "BERLIN DAGOR" absent the word Goerz. Those are easy to tell as they are all labeled "Lens made in Switzerland". And then there were the later Kern made Dagors during the Kollmorgen (early 1970s) and Schneider (1970s and early 1980s) years. This designation remained until around 1963 or 1964 when they changed the company name and labeling to read" "GOERZ OPTICAL CO. Later, possibly post-WWII, perhaps a little earlier (I'd have to comb though old catalogs to nail down a date), they switched to labeling their lenses "C.P. The simple "GOERZ DAGOR" was the engraving style they used at that time. The lens shown above is definitely a pre-WWII US made Dagor. Lenses made by the American Goerz company were engraved with a number of different designations over the years. Lenses made in Germany after the Zeiss merger are labeled: "Carl Zeiss Jena" and "Goerz-Dagor". Lenses made in Germany prior to the German Goerz being absobed by Zeiss-Ikon (ca. If they would have, they would have been sued to high heaven by C.P. They were sold by B&J as new "Berlin Dagors" and did not contain the word "Goerz" anywhere on the lens.
Those lenses were assembled using old, loose, and often poorly matched, elements of dubious quality. It's definitely not one of the infamous B&J "Berlin Dagors".
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