The 100-piece limited-edition art piece features hand-engraved numbering at the bottom. This adjustable lamp is made from a 1940's radial engine piston called the WWII Jacobs R-755. The piston was used to power airplanes such as the Beechcraft Staggerwing, Boeing Stearman 75, and Avro Anson. The piston has been buffed to a mirror-like luster. For authenticity, the lamp is marked with a Flying Monkey stamp. The lamp measures approximately 22" in height and comes with a 6-foot cord and a 60-watt bulb.