Nice little utility stove. The filler cap, the burner, inner burner cap ( outer was missing ), and pump which has an O ring, are all different to what you would generally find on this type. I believe these were fitted from new. Soldering of the legs, pretty basic, to say the least.
Very nice! The burner appears very much like an Optimus silent burner with the holes in the burner tube and the 3 sets of 3 holes in the inner cap. Now you need a flame shot with all those little outer cap holes lit up merrily blue.