Large Ships Lamp, Brass with Blue Fresnel Lens. Blue lens was used as a warning light.

Size (with handle down): 20 X 14 X 17 in.

#2498 .

Nautical lanterns for guidance and travel on the water can be traced back almost to the beginnings of seafaring. Ancient imagery and writings tell us that oil burning within a container of some sort was used by Greek and Indian sailors, and the The Lighthouse of Alexandria, sometimes called the Pharos of Alexandria, built in Egypt during the reign of Ptolemy II Philadelphus (280–247 BC), expanded the principle to extremes, standing over 300 feet high and visible for miles. Over the centuries oil and candlelight were the predominant form of lighting, until electricity became regularly transferable and harnessable. Ship’s lights, lamps and lanterns are constructed of high quality brass and have multiple color schemes for different situations. Specifically, red, green, and white lights may only be displayed at night in configurations known as “Navigation Lights.” The blue lights are displayed exclusively for emergency or law enforcement vessels, and so are rarely seen. In a Fresnel lens, such as the one on this lamp, hundreds of pieces of specially cut glass surround the bulb. This design intensifies the glow from the light, focusing rays of light that would normally scatter into a single, intense beam of light, which shines out in a specific direction. 

Location: Between C1 and C2.