A very large an unusual size American Navigation Aid, this Gas Accumulator Channel Light is quite a spectacular presence, even less than complete. Heavy gauge brass holds most of the original glass triangular panels, and a more modern center fresnel lens. Some existent paint of white still remains on the glazed window frames, and the brass has turned to a deep tone with its age. Purchased in the late 20th Century from a northern California farm. How it got there is your story to tell.