As promised here are some more pictures of the Radius No 21. I believe that it may be post 1938. Anyone got any better date idea? Steve.
Hi, if you wrap a wet towel around your head and study this post by Stejar: https://classiccampstoves.com/threads/20588 It would appear that your Radius No.21 is a Type 5 by his classification, as: 1. It is clearly marked Radius Ltd. 2. It has the Radius "shooting star" that was a feature of the earliest, Type 1 and 2 models. 3. The filler upstand is not recessed, or "sunken", into the tank like the early Type 2 and 3 models. 4. The "Made In Sweden" marking on the tank top is in large lettering. So, if I stick my neck out, that would seem to indicate a date around the early 1950s..... What do you reckon? Your stove is in lovely condition. Best Regards, Kerophile.
Hi Kero, Boy, is there a lot of info in that link! The detail tends to swamp me. Reckon you are right; Type 5, 1950's. Thanks - Steve. PS: The Mods may like to amend the Post title to reflect the date. I will report it to them.
I would put a date at 1951 - 1955. If you have the original instructions, it might be possible that they are dated already.