Ok this particular information is what I remembered. So 1907/8 is still the correct year to indicate the end of the N&W collaboration. Thanks, Nicola PS I thought too that the end of publications wasn’t indicating a sure end date for the relationship between N&W
@igh371 O.K. - new source give new possibility... but Thats newspaper archive is searchable "after 1905" (see upper picture) - and not only in the adverts - but in the EXPORT reports too...
Sorry, just a step back. After the 5* above another example pushing the “bubble font” tanks toward the late 1920s. To note on this no 15 (from listing in Holland) the absence of Russian side text and same spirit cup and burner of the 5*. For this model too I have no reasons to think that both the burner and the spirit cup are later replacements (just because they are usually found on late 1920s early 1930s models like 25,26, etc.). I also recognize a foot style more similar to later models. As always still observations. Nicola
Ok, a last minute pure speculation So take it just as my imaginative thought! I have just learned thanks to the last information shared by @gieorgijewski that A. Willander started to market B.A.Hjorth stoves in 1897. This 1897 year seems to return quite often. The January, 29 1897 advertisement shows the new patented burner by Trassman & Petterssons marketed with the Svea name. If Willander started to work with B.A Hjorth in 1897, maybe, just a little before, he was behind the marketing of this new burner with the Svea name. I like to imagine that the Svea name is something that belonged to Willander’s creativity and that, after this first failed attempt (that burner appeared only on the patent and on that adv) and after his collaboration with B.A. Hjorth ended in 1904, he repurposed the Svea name with CR Nyberg’s stoves… And this would also explain why Nyberg didn’t use the Svea name instead of Victoria in the same years.
Is this adv from 1895 of Victoria 2 the latest trace of Nyberg’s stoves that we have? (dated before 1904). I am searching the forum for any info in between these two dates but I had no success. Thanks!
I have just noticed that the 1897 Svea advertisement has been published two times: First time on January 19, 1897: Second time on February 26, 1897: The texts are a little different, on the last one is omitted svea-brannaren. Nicola
Always crediting @gieorgijewski for the amazing researches and documents he finds, I am repurposing some of them just to make a linear sequence of events that could be related to the mysterious 1897 Svea stove. On November 8, 1897 there was a call from Liedberg & Bäckgreen for defective Record stoves that should have been returned. So apparently things were moving fast, in fact the depicted Record stove has already a new burner with classic 4 tubes. So if that was the stove to return that suggests that it was released a little earlier. So the lifespan of some burners was very short and of course also that Svea model could have been just a prototype that didn’t have much fortune. So I am pretty sure we won’t found out much more about it. Nicola
Returning to the issue of the tube silent burners and how long they remained in production. I have checked back looking at the examples I have, two Svea No.5s, one Svea 15 with same size tube silent burner as the no.5s, and two No.14s with the smaller size version of the burner burner. All sport the round Sievert tank base stamp and the six line tank side provenance panel as well as the large Cyrillic text side panel which in combination probably places them closer to 1915 than to 1908. The No.s 5 and 15 also have 'Nybergs Patent' marked pump tube caps which I suspect probably fits with that sort of rough time period guestimate. The No.14s, however, have pump tube caps marked 'Svea Sweden' which is a slightly later version of pump tube cap marking. This could place them closer to the date when the Cyrillic tank panel was dropped which would be after 1917 The difficulty is that, although we can discern these timeline sequences, we have no solid information to fix precise dates to the introduction of the 6 line side panel, the switch from 'Nybergs Patent' to 'Svea Sweden' pump tube cap inscriptions, or for the date when the Cyrillic panel was dropped. That latter presumably occurred after the consolidation of Bolshevik control in Russia, but that could still have been as late as 1921/1922. Consequently I think that it is quite possible that some tube silent burners were produced after the end of WW1, but that may only have been the smaller size version.
@igh371 as I evidenced on catalog 26 from 1915 the tubolar silent burners were fully replaced by the newer 812/813… this doesn’t mean that huge stocks of burners were still used in the next few months/years… so I wouldn’t push the tubular burners to the early 1920, but we can agree that they could have been sold on stoves also in the next few years, 1916,1917… All the references we have are not precise or anything, but being able to date with a 2% of approximation is already something. Thanks for sharing more detail, I will keep note of everything. Nicola
Additionally your description of these models 5 and 15 fits with what I have observed and described in the quoted message above. Nicola
@gieorgijewski just wow! At first, looking at that burner, I recognized some similarities with my latest Arvid Böhlmark Jupiter stove burner… After a few seconds, my brain started to make some connections, and came to my mind this Nyberg burner patented in 1906… and it seems that you found it and we have the honor to see it! https://classiccampstoves.com/threads/cr-nyberg-feb-5-1906-patent-22701.49208/ I am emotionally grounded @multi-cho Nicola
@gieorgijewski why do you say late example for that Svea 1? Considering the burner and the Willander markings we are clearly in 1905/6… We have two patents registrations for that burner, the earlier is late 1905. And this burner has been patented before the tubular 804/805… so probably it is the first svea silent burner attempt. Nicola
Ok. Remember that we know two Willander logos, 1 pint/2 pints tanks… they are contemporary, they only change because the tank size. Additionally, if this really is from 1905/6, earlier than this could be only Willander 0/1 with 800/801 burners… Nicola
Only this photo I guess… hard to say… I exclude 14 because we have a partial number in a position not compatible with 14:
