This item is a vintage automotive component attributed to the Star motor car, a division of Durant Motors, which operated between 1922 and 1928. The cap is constructed of brass and served as a grease cover or dust cap, typically found on the wheel hubs of early 20th-century vehicles equipped with wood spokes. The flat circular crown features an embossed five-pointed star emblem, the distinctive logo for the Star brand. The upper portion of the cylindrical body is faceted to allow for manual or tool-assisted gripping during installation and removal. The underside reveals deep internal threading designed to secure onto a threaded wheel hub or axle stem. Dimensions: Not specified.