This RARE & sensational Red Glass & Brass lamp by Paul Hansen is simply beautiful!!! Reminiscence of a oil lamp, but with more beauty!! The Paul Hanson Lighting Company began in the 1920's thru the 60's, and as collectible today as then. Their appeal lies in the quality of the materials-porcelains, high quality wood, marble, bronze and brasses. They were created using molds as well as cast metal in a lost wax process. This process is based on carving a form from wax and burying the wax form in sand. Then the bronze, or other metal, is then poured into the sand and the wax is burnt away with the metal filling the void left, thus making the casting. It is an expensive process reserved for art pieces. The Paul Hansen maker mark is on the label on the socket.