@Nicola Francesco Elia https://classiccampstoves.com/threads/primus-110.42313/ see also the thread in the fettling forum?
Check on this catalog: https://classiccampstoves.com/threads/1937-primus-catalogue-no-6675.11574/#post-110496
Also, the heat shield is not a part of 110 heater and you will notice that the two bowl supports are not shaped for the 110 feet.