As much as I would like to relate a story of finding this stove under a pile of junk at a car boot sale after hours of searching, that wasn't the case. I just happened to be lucky enough to be browsing Ebay only a couple of minutes after the seller listed this on a Buy-it-Now for £28.00 In the 1930s, Gustav Barthel made the Juwel 22 and the Juwel 25. The only difference appears to be that the 22 has a regulator whereas the 25 does not. Logically, and bearing in mind that in other stoves such as the Primus 70/71, the unregulated versions preceded the regulated versions, it would be reasonable to suggest that the unregulated 25 preceded the regulated 22. However, others have said that it is the reverse. To add more confusion, the case for the 25 has the hole in it for a regulator key, implying that the 22 was already in production and they used the same case for both versions. As received: The stove stripped down: The pot stand is in four sections: Two of the sections slot into holders with the other end hooked onto the side of the case: The cross pieces are then hooked on. They can be positioned for large or small pots: In transit mode, the travel cap is fitted over the jet/nipple: In use the cap is removed and the burner bell fitted: Despite having a standard size small jet, the bell has quite a wide thread. Here shown on the left with a bell from a Primus 71 on the right: The spirit cup is bolted on from underneath: The top of the tank has a pattern of dotted marks. It looks some sort of tape has been stuck there, possibly a sticking plaster. The dots have eaten into the brass and cannot be polished out: End of part 1.