Vernier dial for radio tuning. Circular plastic plate with finger grip for course tuning, centrally-mounted control knob for fine tuning. Course scale 0 to 100 by tens, fine scale 3 to 0 to 3. Three-legged copper spring plate on back. Molded on back: "E-Z Toon Radio Co. Pat. Pending / Indianapolis, Indiana U.S.A."

Measurement: 1 7/8 in x 3 in; 4.7625 cm x 7.62 cm