THIS LISTING IS FOR A VINTAGE, POLISHED BRASS SMALLER SIZED HOLOPHANE STERN LIGHT. IT HAS AN UPGRADED STITCHED AND EMBROIDERED 12″ X 18″ US ENSIGN POLYESTER FLAG. SEE LAST PHOTOS SHOWS THIS LENS WITH THE LARGER MORE COMMON LENS THESE ARE USUALLY EQUIPPED WITH, THE LARGER LENS IS NOT INCLUDED IN THE LISTING. IT IS JUST TO SHOW THE DIFFERENCE IN SIZE. The Holophane Glass story begins in the early 1890s when French electric scientist. And Greek engineer Spiridion Psaroudaki covered a glass globe in the laboratory with horizontal prisms positioned to manipulate light. AT THE TIME THIS WAS LISTED, I ALSO HAVE A FAIR ASSORTMENT OF RED/GREEN BOW, AND SIDE NAVIGATION LIGHTS, STEAMING LIGHTS, AS WELL AS STERN LIGHTS. I JUST INSTALLED NEW TINNED MARINE WIRING, AND A LOW DRAW, VERY BRIGHT LED BULB, (PLEASE VIEW PHOTOS) THE WIRE EXTENDS APROX 10 FROM THE BASE. IT MEASURES APROX 23″ TALL, THE DECK MOUNT BASE MEASURES APROX 2″ DIAMETER AND THE POLE CAN BE REMOVED FROM THE BASE, SO WITH A SMALL QUICK CONNECTOR YOU CAN REMOVE THE LIGHT WHEN YOU WANT TO COVER THE BOAT.