Seventeen Antique Light Bulbs, 20th Century,
A total of seventeen light bulbs of assorted shapes and sizes, most tipped, four with plexiglass bases, four with wood bases. Largest light bulb measures 9 3/4 in high. Manufacturers include Mazda, Banner Mazda, Westinghouse Mazda, Sawyer Man, and Packard.

Also including:

One Aerolux glowing flower 2-3 watt lightbulb, measures 9 in. long.

One blown glass spectrum tube, used to make spectrum of gases visible. Measures 18 in. long.

One blown glass violet ray tube. Violet ray machines were popularized by Edgar Cayce for treating a wide spectrum of ailments using a Tesla coil. Glass and filaments appear intact. All lots have imperfections or the effects of aging. Untested. Some bear paper labels or the residue of them. Gray's Auctioneers shall have no responsibility for any errors or omissions.