This knob has the tapered base that fits into the raised toe ring on later versions of the Stanley planes.
This knob is approximately 2-3/8" in height, the base is approximately
1-1/8" diameter, and the knob is approximately 1-1/2" at its widest.
This knob looks like a good fit for a #3 or #4 plane.
*****CHECK the dimensions given and see if they will be compatible with your plane.*****
The knob was carefully lathe sanded and given two coats of clear shellac.
Very good condition, there are a couple of very tight short cracks at the base that should present no problem, no serious dings as can be seen in the photos.