This vintage grease cup cap is an early 20th-century automotive component featuring an embossed script logo for the Ford Motor Company. Constructed from cast brass, the cap is designed with a hexagonal head to facilitate removal and tightening with a wrench. The top flat of the head is embossed with the Ford script logo positioned above the text MADE IN U.S.A. These components were a standard part of the lubrication system on the Ford Model T and were frequently manufactured by the Bowen Products Corporation. The interior features coarse internal threading designed to secure the cap to a grease cup body, allowing lubricant to be forced into chassis joints.