Diameter: 1 1/2 in. (3.8 cm)
Inside, printed on the metal, "IMBER QUALITY PRODUCTS/ L.J. IMBER CO./ 1639 West Evergreen Ave./ CHICAGO, ILL"
On outside, line of blue electric symbols on white. Surrounding center, white letters on red, text: "UNITED ELECTRICAL RADIO & MACHINE WORKERS OF AMERICA, C.I.O." In center, white letters on blue: "U.E. / MEMBER.: Inside, printed on the metal, "IMBER QUALITY PRODUCTS / L.J. IMBER CO. / 1639 West Evergreen Ave. / CHICAGO, IL".
Gift of Ted and Eileen Rowland
Due to ongoing research, information about this object is subject to change.