Ornamental diving helmets, made from solid brass and copper, recall the days when the pioneers of diving struggled on the ocean bed in equipment heavier than themselves. Our full-size replica, based on the US MkV model, is so complete that from the outside very close examination is required to detect that it is not an original. It measures 12" across and weighs 37 lb. The medium-size is a scaled-down version, with the same attention to detail, measuring 8.5" across and weighing 7 lb. The small version is, of necessity, a little simplified, but still makes a fine display, measuring 5" across and weighing 1 lb. All three would be straightforward to illuminate.