SOUND SIGNALS, DAYSHAPES AND NAVIGATION LIGHTS poster illustrates each type of navigation light combination with views from the bow, stern and side, as well as each corresponding day shape and appropiate sound signal, making for ease in vessel identification. This chart describes the following: a Power Driven Vessel Underway, a Sailing Vessel Underway, a Vessel At Anchor, a Vessel Not Under Command, a Vessel Not Under Command But Making Way, a Vessel Restricted In Her Ability To Manoeuvre, a Vessel Restricted In Her Ability To Manoeuvre Making Way, a Vessel Restricted In Her Ability To Manoeuvre At Anchor, a Vessel Constrained By Her Draught , a Vessel Aground, a Vessel Engaged in Trawling - Shooting Their Nets - Haulin In Their Nets - Net Has Come Fast On An Obstruction -, a Vessel Engaged In Fishing (Other Than Trawling) - With Purse Seine Gear -, a Pilot Vessel Not Engaged On Pilotage Duty, a Vessel Engaged On Pilotage Duty (At Anchor), a Vessel Engaged On Pilotage Duty, a Vessel Engaged On Pilotage Duty (Making Way), a Submarine Making Way On The Surface, a Vessel Engaged In Dredging Operations, a Vessel Engaged In Underwater Operations While Making Way, an Air-Cushion Vessel Making Way, a Vessel Engaged In Diving Operations, a Vessel Engaged In Mineclearance Operations, a Power-Driven Vessel Pushing Ahead, a Rigidly Connected Composite Unit, a Power-Driven Vessel Towing Alongside, a Power-Driven Vessel Towing.