I am building the HobbyBoss 1/350 HMS Lord Nelson. At the stern of the ship there are two small PE cages hung over the side just forward of the Admiral's walk. They appear to be a cage for a life preserver or small flotation device of some kind. The piece that goes inside looks like four small balls joined together. Similar to a four leaf clover but with balls instead of leaves. Anybody have any idea what it is and more importantly, what color it should be painted? Thanks for your help.