This is a vintage Aladdin No. 23 kerosene oil lamp, identifiable by the model number stamped into the brass burner assembly. The lamp features a brass lox-on burner designed to hold a mantle for producing bright white light. These lamps, often dating to the early 20th century, are noted for their high-quality construction and are still sought after for homesteading or emergency lighting. The condition appears to show typical age-related tarnishing and patina on the brass surfaces. Some use and glass may have small flea bites but no major issues.