According to the Hovik Verk write-up in the Manufacturers section they made stoves for Primus between 1953 and 1961. Although undated, this stove must date from that time. For once I actually remembered to take "before" pictures of this well used and extremely oily stove that took some cleaning up: The stove came without a flame ring and the rest of the shots here include one borrowed from a 111. And here's the "after" (note I forgot to include the windshield in the shots): Only the tank has any reference to Hovik Verk. The rest of the components are branded Primus: The stove includes a heat shield for the tank that I've not seen on other versions of this stove posted in the Primus section. This is obviously original as it is well branded, but I wonder if this was specific to the Hovik Verk version? If you have difficulty reading this it says: "Primus No 41 Sport for Turbruk for Petroleum" Petroleum in this instance refers to Kero per the Scandinavian fuel naming. Can any of the Scandinavian members throw any light on what "Turbruk" means. I've Googled it and plugged it into a number of online translators without conclusive results. From some of the Google results is it something to do with Winter Sports or Cross Country Skiing? I had some fun and games with the spindle. As can be seen in the pictures below, the teeth that engage with the cleaning needle were not serviceable. However, the control knob end consists of six splines rather than the 111 type square section. The 41 spindle is also around 12mm or so shorter than the 111 spindle so a direct replacement was not possible becuase as well as the splines, the control knob on the 41 also has a sleeve that screws onto a threaded section of the stuffing box to secure the control knob whilst the stove is in use: So I had to shorten a spare 111 spindle, then cut off the control knob end of the damaged 41 spindle and braze the two pieces together. Rather than just trying to butt the pieces together I also made a short saw cut across the end of each piece and inserted a fillet of brass and then brazed the whole lot together. This appears to have resulted in a nice strong joint. Here's the result: And finally, here it is up and running, this time with windshield included in the shot. Turning the stove up higher than this results in a small leak from the jet to burner connection so I need to dismantle and see if I can reseat it better or if I have any small burrs etc. Should be fixable.