This is a vintage new in the box galvanized ships all round navigation light made by Perko Marine. It was intended to be used as a ships emergency back up navigation light on vessels over 65.6 feet. It measures 20 ” tall, 10″ wide, and weighs 9.8 lbs. I acquired three of these and they are all identical. They all have the unclear (frosted) composite Fresnel lens. These are priced each. I believe Perko quit making this light in the mid 90’s. The item “VINTAGE PERKO SHIPS ALL ROUND NAVIGATION LIGHT NOS” is in sale since Friday, September 22, 2017. This item is in the category “Antiques\Maritime\Lamps & Lighting”. The seller is “ship_breakers_nautical” and is located in Menasha, Wisconsin. This item can be shipped to United States.