Here is one you don't see too often. Ben (z1ulike) was kind enough to ask me to fettle the stove for him. It was an honor and a special opportunity given the rarity of this stove with it's unique early regulated silent burner. Thank you Ben. But, before the "afters" here are some befores and durings: Burner was missing it's spindle nut. A more modern spindle nut fit adequately. This odd clear plastic "pump cup" was replaced with an excellent Sefa leather during fettling. The pump knob and the pump shaft were mismatched. I determined by checking with some of my period-correct stoves in my collection that the knob was the issue. It was eventually rethreaded to match the correct pump shaft thread. The unusual structure of this unique Primus burner. The burner was bent from some abuse during it's life which shows somewhat in this photo. The bend was corrected during the fettling. After some cleaning of the stove: These photos show the unique burner mount. No gasket is required for this mounting system: By now observant stovies have no doubt noticed the interesting threaded "nipple" in the side of the burner. What could be under this? Was it a "spare" nipple parked in this location... or, perhaps access to the interior of the burner? Stay tuned for post #2 to find out more.