Here is a very rare Ruby Glass "Manhattan" Carbon Lamp with an early brass "Westinghouse" base. This exceptional lamp has a beautiful ruby glass globe and an early "anchored" two loop oval carbon filament. This filament was made by squirting a cellulose liquid solution through a tiny hole of an extruding die into an alcohol setting bath. The resulting fine thread like carbon was then treated, shaped and carbonized before it was placed in the lamp globe as an incandescing filament. This process, perfected by Edison's laboratory, was a major breakthrough in light bulb production because it was a process which lent itself well to high mass production techniques for the manufacture of incandescent lamps. Up to that time the job of creating large quantities of filaments was very labor intensive and expensive, the most expensive part of the lamp. Lamps with double oval anchored filament design were first commercialized by GE circa 1894 and then licensed to other lamp companies. This lamp has a generous 3.0 inch diameter red glass globe and is 6.5 inches tall with a beautiful clear glass tip. This Ruby Glass "Manhattan" Westinghouse base lamp is a century old, still works great and is a great collectable item to own.