By Machine Age Lamps. Copyrighted design, we will register this design with the copyright office as a work of art/sculpture. Antique Sun Automotive Test Meter, probably dates to 1940's. Industrial power switch mounted on the back of the meter. Handcrafted and assembled in the USA. A unique combination of salvaged antique industrial parts, Edison Light Bulbs and extreme craftsmanship. Signed and numbered, no two are alike. Three prong wiring and heavy duty lamp sockets can take up to 300 watt bulbs.