Originally they were No2 & No3. Sometime in early 30's they were given the names Badminton & Dominion same gun and I belive same source. They were supplied by Frederick C Scott (no2) and Messrs Bennet & Bickley in B'ham (No3) At least thats what I get from Donald Dallas' Book Holland & Holland "the Royal Gunmaker"
hope this helps


Hugh Lomas,
H.G.Lomas Gunmakers Inc.
920 876 3745