Small rectangular orange cardboard box with blue and black printed text on the top and sides. The front label reads “Hammarlund Precision Products – 5-Pin Coil Form – Code C.F.3.” The box also includes the manufacturer’s address: “Hammarlund Mfg. Co. Inc., 424–433 West 33rd Street, New York.”
This packaging once contained a radio component, a coil form used in radio tuning circuits. The Hammarlund company was a prominent American manufacturer of radio equipment and electronic components, known for its precision engineering and high-quality shortwave receivers.