Two battlecruisers at sea in fine weather, seen from ahead, on slightly divergent courses. The lead ship is of the 'Indefatigable' class and the vessel on the left of the 'Invincible' class. Since the leader does not have a foretopmast, the date is likely to be 1917 and its identity either the 'Australia' or 'New Zealand', in which case the other vessel is either 'Indomitable' or 'Inflexible'.