like the above attachment It is thought that the technology and parts of the juwel-3 series or barthe had already entered the United States around or before 1901 and allowed local production, or opened up a sales route through New York and Boston distributors later. Looking at the 1901 Lovett catalog, there are three familiar protruding heads (ex 6A burners), and the largest size was the large size I had never seen before.
@multi-cho Thanks, sure is possible Jewel is just a translation for the American market. Many 6 models seen here, especially with traveler set, has been found in the US if not all of them. Some have brass plates of distributor soldered and engraved Juwel, so probably they were imported in those cases. Which is that larger burner head you’re talking about on this Lovett catalog? Thabks, Nicola
@Nicola Francesco Elia Comparison of GB mark between 3A and 6A conclusion: The mold has been changed. 3A GBmark 6A GBmark
@Nicola Francesco Elia I quote again the catalog provided by Mr. Optipri. After getting to know the image of No.5 in the summer of 2012, a catalog (French version) appeared in ccs to prove it in 2013. Image 5 is a butterfly fuel cap. And my friend number 5 has the same mark, so even if the year changes, the body remains the same, only the fuel cap is different depending on the year of release. I think it's a fuel cap from 1908 to 1912. Therefore, your No. 5 is a precious stove with a long history.
@multi-cho yes, I agree, evidently the filler cap design was improved with the locking of the air release key. This no 2, with the same tank shape of no 5, demonstrates this: Nicola
@multi-cho in your 6b gallery post you were talking about the evolution of Juwel models. I don’t understand why in this French catalog models 5b and 6b were sold at the same time. In the end these two stoves have pretty same size and same burner… Nicola
Hi @Nicola Francesco Elia Yes.... The body and fuel cap seem to have changed after the catalog below. "Dome" looks more classic, but Barthel always goes beyond common sense.
I always have my doubts about juwel numbers. It is often called 6A/, but if you look at the initial version, there are no exceptions, only the Juwel patent. The number 6 is clearly marked only in the French catalog provided by mr."optipri". Why did this happen? Juwel did not give a number because it was a single product from the beginning, but while making No. 5 stove Did they start marking the number 6 on the surface of the patent version? Otherwise "juwel Patent=juwel 6" There is no way to explain this formula Here is the same Juwel stove as my member Nano's 1908 flyer. Singularity: There is a protrusion on the underside of the support that acts as a "stopper". View attachment 276961 View attachment 276961
@multi-cho The central protrusion on bottom plate is something I have on all my Juwel 6 if I remember well. Juwel 6A and 6B are visible already on 1908 catalogs and brochures: Nicola
@multi-cho For me that Juwel Patent “not numbered 6” is the last step of the model 3’s metamorphosis that brought us the final no 6 version. From the juwel patent “3” with side pump I see this model by @igh371, that we called “3b” in your 6b discussion, as the next evolution of model 3. For me is wrong calling it 3b because it already has new style pump, I would call it pre-6b: We still see the brass supports as on model 3 but the introduction of the new style pump and probably same heavier construction as model 3. Also introduced new riser/tank connection. From this, probably we go to the patent model “not numbered 6” that you linked that is basically the final no 6, with lighter construction and simple metal supports for legs.
For me the model 5 is later than model 6 and produced when the model numbering was already in use, in fact, as we have seen, model 6 could be the direct evolution of the early patent models or model “3” as we call them. Do we have any document that make a reference to a model 3? Or number 3 is given by collectors? Nicola
And I would date these with full brass supports and plain filler caps: Earlier than these: Butterfly filler cap and detachable legs for me are an evolution… filler cap is more user friendly with wings and detachable supports are needed to make the stoves portable, so the introduction of the traveler versions with tin box. Nicola
