Original Grayson thermostat regulator black oven knob dial. These are found on various stove brands from the 1930's. This style slides on attaches to the thermostat stem via an allen set screw on the knob (set screw is included). Cleaned, polished and re-lettered. There are no cracks or chips - this knob is in very nice condition. A very rare find.

MEASUREMENT: Diameter 1-7/8"