Breakwater navigation lights are placed at the end of the breakwaters to warn incoming vessels of the end of the structure, as a marine safety measure. The subject item was such a light believed to have been placed at the end of Warrnambool's breakwater around 1915 when it was extended. The light had remained in place for many years until it was probably removed when the structure was undergoing rock armouring repairs to the end of the breakwater in 1975. The light had been placed in a council storage shed probably from the time when the structure was undergoing these repairs in 1975. In 2014 the light was removed from the storage shed and donated to Flagstaff Hill museum. History: Warrnambool breakwater plans were drawn up by 1874 and approval was given for preliminary construction work to start but when the money ran out, the works stopped. With a number of quick changes of government the “Warrnambool” breakwater project was kicked from one Victorian state government to another. Then finally in 1879, the eminent British harbour engineer Sir John Coode was asked to design a breakwater. His first design was for a 1800 feet long structure but that was scaled back to 900 feet and construction finally began in 1884. This structure was attributed in causing major siltation of Lady bay, as a consequence the breakwater was again extended in 1915. In 1975, the rock armouring at the end of the breakwater was added but by 1979 another impact study was calling for the breakwater to be removed altogether. The Heritage Council Victoria, regard the Warrnambool breakwater is of historical significance to the state as one of the most important maritime engineering projects that was undertaken in Victoria during the late nineteenth century. The light is also as part of this structure regarded as a significant item of historical interest.Marker light or navigation light. Round light stand with conical top piece (2 separate pieces). Metal base painted red, clear glass middle section enclosed by metal frame, metal cone shaped top section painted silver. Electrical wiring can be seen inside centre section. Pole that light would have been on to elevate it is missing.Has metal plate screwed onto side of base engraved "23". flagstaff hill, warrnambool, shipreck coast, flagstaff hill maritime museum, maritime museum, great ocean road, warrnambool breakwater, marker light, naviagtion light, breakwater navigation light