I'm aware that automatic fuze setting for AA shells was introduced during WW2 (Machine Fuze Setting No11), so a few technical questions, if someone could assist, please: 1) I am unclear as to how this worked - was the fuze set before or after loading, and how? 2) Were all fuzes able to be set automatically, e.g. 199? 3) Which theatres of war were supplied with them, e.g. Italy? I'm aware that gun crews on the MkIII 3.7" Vickers denote one member as a 'Fuze Setter' - was this still a manual task? 4) What was the process of setting the fuze before automation? Was this literally a matter, for example, of turning the timing ring on a 199, and then switching it from 'safe' when loading it into the tray? Thanks in advance!