General Description Name: "Cambrian" safety mine lamp Manufacturer: E. Thomas & Williams Ltd., Aberdare, Wales Model / Serial Number: Cambrian No. 226305 Period of manufacture: Circa 1930-1990 Materials: Brass, copper, glass, steel Type: Oil (kerosene) flame safety lamp Intended use: This is a mine safety lamp used in coal mines in the United Kingdom. Its main function was: To provide light in underground areas where natural light was lacking. Safety feature - the lamp was designed so that the flame could not ignite the methane (firedamp) gas that is often found in coal mines. This design was based on the principles of Davy and Clanny safety lamps, with a fine metal mesh around the flame, which prevented the flame from "going out" beyond the lamp. Manufacturer E. Thomas & Williams Ltd., founded in the late 19th century in the town of Aberdare, South Wales, was one of the best-known and longest-running manufacturers of mining lamps in the world. The company remained active until the 21st century, producing not only practical, but also collectible, commemorative and gift lamps that retained the original design. This lamp with the inscription "CAMBRIAN" refers to a model used both in practice and later as a souvenir, but fully functional product. Appearance and details In the upper part - air inlets (explosion-proof). Inside - a flame chamber with a glass cylinder and a protective metal mesh. In the lower part there is a fuel (kerosene) tank with a screw cap. The manufacturer's stamp is clearly visible on the body, which confirms its authenticity.