Repro of Zenith Wood Knob (plastic)

Tone or Sensitivity function of shutter-dial radios for 1938 and 1939

models: 6S249, 6S254, 6S256, 6S341, 6S362, 7J232, 7S232, 7S240, 7S242, 7S258, 7J259, 7S260, 8S129, 8S154, 9S204, 9S232, 9S242, 9S244, 9S262, 9S263, 9S264, 9S365, 12S205, 12S232, 12S245, 12S265, 12S266, 12S267, 12S268, 15U246, 15U269, 15U270, 15U271, 15U272

Dimensions: 1-1/8" diameter, 1/2" tall, fits a 1/4" flatted shaft

Secured on the shaft with a set screw. (provided)