Original Item: Only One Available. Constructed of brass and copper this is a World War Two Imperial Japanese Navy IJN Masthead later or light. It features a 180 degree clear glass lens, multiple Japanese Kanji markings and original data plates. The data plate reads SHOWA 18, 9th month which indicates this light was manufactured in September, 1943. The glass has one crack but stable, dented on the top, but overall good condition, we have not tested functionality, but internal electric cord is present. These were designed to be positioned on top of the mast. It measures 16″ x 9″ x 9″. Makes a great display piece for Imperial Japanese Naval collectors.