There’s been some discussion on the manufacturer’s identity, ‘JW’, when examples of this brand of stove has arisen before :- HERE, HERE and HERE. I asked the seller what he knew of the stove’s history and he said, As @igh371 said in presenting his 1-pinter, the stove is equipped with a roarer burner of a size more usually seen on a 2-pint stove. The Primus 210 on the left (1920 date) has the usual size of burner. The consequence is that the ‘JW’s fuel tank gets warm, but not too hot, in use. Markings on the burner. Engraving on the base. Concentric rings, not intentional surely but the result of the metal spinning process employed to make the base. Stubby hexagonal burner riser, sealing by lead washer. In discussing his 2-pinter ‘JW’ Ian mentioned the possibility that it had once been nickel plated. I wondered whether that was the case with this collapsible stove when I saw the plating on the feet/pot rest support lugs. There’s no evidence that the whole stove was plated (no sign of wear residue) but just those components are. The copper finish evident in that last photo is a pre-plating over brass and the feet aren’t made of copper, which would be too weak for that application. The priming cup is of steel. Although the unfinished rim makes it appear hand-made, the contours other than the rim are too regular, suggesting it was press-formed. Left untrimmed, the rim does at least offer an extra margin of capacity, so is useful if not the most elegant of treatments. Finally, a word about the filler cap. As it came to me it was a sorry example. The air release screw had broken off, leaving a stub, and most of the knurling appeared to have been filed off. I happened to have a steel Coleman filler cap. With its internal threads ground off the JW cap fit inside, where I soldered it in place. So it’s a Coleman filler cap with internal threads to suit the stove. The absence of an air screw to release pressure isn’t an inconvenience. There’s plenty of cap to grip (!) and though the tank gets hotter than the usual 1-pinter’s because of the over-sized burner, the cap doesn’t get uncomfortably hot to grasp. John
