Very proud of my old stove still made without bayonet coupling. It must have been one of the last models, which are somewhat rare to find.
Interesting period for Trangia. Even though there's no bayonet-lock on the upper and lower windscreens, there is a hole for the gassie adapter. I bought a 25HA set a couple years ago. Love it. I even got a 27 Duossal 1L outer pot, [to see what Duossal was all about]. The Outer 27 pot fits right inside the 25's inner pot.
