Vintage Spencer Labs. Crystal Radio 1930's Akron, Ohio

Vintage crystal pocket radio set commerically made and signed by Spencer Radio Laboratories, Akron, Ohio. Complete including radio, original box, instruction sheet and warranty sheet. The radio hardware(including germanium crystal) is riveted on a thin 4 5/8" x 2 3/4" board which which is covered with heavy green paper with gold lettering and decoration. The box is covered with green paper, also with gold lettering and decoration. The station frequency and volume are achieved by adjusting the configuration of an open coil on the board. The box has a 1929 registration date and I believe the radio is from the 1930's. Due too age the box has the normal fading and tape on one end. A very unusual crystal set in excellent, apparently unused condition. Buyer pays shipping from 44281(Ohio). Thanks