I photographed this Fresnal Lamp at the Wisconsin Maritime Museum in Manitowoc.
I was absolutely sure that I had previously posted Fresnal Lamps (such as one in Alaska) but that page may have been overwritten by mistake.
I photographed this Fresnal Lamp at the Wisconsin Maritime Museum in Manitowoc.
I was absolutely sure that I had previously posted Fresnal Lamps (such as one in Alaska) but that page may have been overwritten by mistake.