Presumably 1914 or later with internal NRV. The burner has probably been replaced, it only has the text "made in Sweden". The alcohol bowl may be original. There is nothing in the brochures about nickel-plated, but I see there are some here in SRG It came to me without a pump rod, but a rod from Radius do the job
Hi @Stanisław Grajewski It is a1,1 liter stove. https://classiccampstoves.com/attachments/lux1913_8-jpg.133970/
Hi Magne: Dating Lux/Optimus products with precision is quite tricky (catalogue illustrations are often not reflective of the latest, actual models), but what follows is based on my close observations of many stoves over the past 50 years. Your Lux stove is (it seems to me) much later than 1914 and forces us to look again at the relationship between Optimus and Lux, and the retention of the brand name for a long time after its acquisition. I'd say that yours is from the mid 1930s: the very specific leg profile and tank design, with its reinforced joint between tank and burner riser tube are identical to Optimus 1-litre stoves from a brief period beginning around 1935 and running through 1939 or so, and reflect the manufacture of the mid '30s. Those exact same legs were also used on Optimus stoves, so, they must all have been made in the same factory at the same time. I think someone needs to look in detail at Optimus' acquiring of other brand names, and what they were actually used for. I used to think that the globe filler must have been a Lux feature acquired by Optimus. The catalogues from the teens don't bear this out, however. Now it seems clear that this was an Optimus feature applied to Lux, Prisma and any others that bear the feature. Probably the last model to use the globe filler cap (the Optimus models seem to change over from this to the simpler one by about the mid 1930s). It seems, from looking at your stove in detail, that Optimus must have acquired the Lux kerosene stove business early on (1914 is our best estimate) and retained the name for quite a while (they did the same thing with Primus and Svea in the 1960s). In any case, no stove before the mid 1920s has that leg profile or the reinforced central riser. Primus reinforced their central riser with a step joint from 1925 (between "N" and" O" in the dating sequence). Same for Optimus: by the early 1930s Optimus had followed suit. Therefore, the Lux name must have been used by Optimus for some markets. Prisma is another of these brands: whether it existed before Optimus is not known (the name is obviously intended to be as close to Primus as possible without triggering copyright infringement). Concerning the spirit cup under the burner: Optimus products through the 1930s would have had the familiar dimpled cup.
Hi @abbahco1 I read your post with interest, I think you are right. In the picture, I have placed Lux in front of an Optimus No.1.S, and at the back is an Optimus 208. The two in front are very similar.
Hi Magne: The Lux is the latest of them if the other two do not have the reinforced riser tube joint (the one at the rear appears to have a solder repair: one reason why that joint came to be reinforced! Also, the leg profile of the Lux is from a few years later than the other two (judging by both the leg and tank details). Point is that Optimus was manufacturing stoves under the Lux name well into the 1930s. Peter
Another clear Optimus feature (after about 1915 or so) also present on the Lux is the angle of the airscrew (Radius adopted the same angle after about 1920). Primus angled the airscrew at 90 degrees to the tank. The lower leg profile (with the curvature) of the Lux compared with the straight section of the two earlier Optimus stoves also indicates the later date of the Lux. It's clear that all of these stoves were made in the same factory using the same equipment. So we must conclude that Optimus retained Lux as a brand name (with its own market share) for quite some time after its acquisition around 1914. Peter
You are really into the details, I am impressed. And it is very interesting. Is this the reinforcement you mean? I'm still learning something here. The details are incredibly interesting to observe And yes, the rear one - 208 is soldered to the riser
