Here is a non-burned Primus marked as no. 121. It does not look like the other 121's, the cast iron frame has 4 legs and is not as elaborated as the other ones in this folder, or what I have found in catalogues so far. I understand however that these models may have changed a bit in design over the years. It has a few dents in the tank, but apart from that seems ok. Marking "S5" puzzles me. S would suggest 1928, but I do not think the stove looks that old at all. If anyone recognizes the model and knows more about year etc, please share.
Hi, very nice stove. To me it looks more like a Svea Simplex: https://classiccampstoves.com/threads/svea-simplex-range.37998/ And this is what I can say, I don't know much about the 121 and its history. Nicola
Thanks @shagratork , I missed that one when I browsed through the catalogue library . I'm probably blind or daft or maybe both….