Dear All, This message has been sent to several lists - my apologies for any duplication. I have a couple of questions arising from a visit to the Australian War Memorial (AWM) with the Naval Historical Society yesterday: 1. There is a model of one of the Australian 'I' class destroyers on display, as equipped for service in the Mediterranean/Adriatic 1917-19 - ie, the torpedo tube right aft has been landed and replaced by depth charge rails. However, there are also four devices fitted on both sides further forward which look suspiciously like depth charge throwers (K-gun type). I was unaware that such throwers were used during WW1, and neither my JANE'S compilation or Manning's THE BRITISH DESTROYER mention them. Can anyone enlighten me further? 2. My second question arises from a photo, which shows an AA gun and crew on 'a destroyer off Bardia' (presumably Australian). Although the photo doesn't include the barrel, it appears the gun is not automatic (eg, pom-pom, Bofors, etc.) and I therefore assume it is a 3" AA - carried by all ships of the "Scrap Iron Flotilla". The layer(?) is sitting in the left-hand seat and has the normal concentric-ring foresight and peep backsight. In the right-hand seat is a second member of the gun's crew who has the same peep backsight; however, *his* "foresight" is a wire frame, shaped like rectangle with the short sides vertical but with the long sides bowed; there are also about half-a-dozen equally-spaced vertical wires enclosed by the frame. The whole thing seems to be about six by nine inches. Can anyone explain what this (and its purpose) is? I suspect it might be a crude height-finder (remember, this equipment dates from the end of WW1), and the operator would pass the estimated/calculated height to the fuse-setter before each round was loaded. I'd be grateful for any information on either question, and am happy to receive responses either via the list or direct to me. TIA Peter Sinfield Canberra, ACT AUSTRALIA email: [log in to unmask] %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%