Handel teroca lamps are a type of lamp that The Handel Company made in the early part of the 20th century. These lamps are usually made with a solid later of colorful slag glass. The glass typically has pinks, yellows, and green tones that you would expect to see during a sunset. The slag glass in then overlaid with a metal fitting. The metal is often shaped to look like a grove of palms trees or other scenic landscapes. Many lamp companies did styles similar to Handelâs teroca line. Authentic examples are usually especially heavy, very colorful, and well executed.