[Collins] WTB knob for Collins 75A4

[John King via Collins]

I wish to buy a replacement knob for my 75A4. The knob is  one with a 1 5/8 inch skirt on it. There are four knobs with that  diameter, but I only need one. One of my knobs has a chunk broken out of the knob, but the skirt is unbroken.

If someone could furnish me with a Dakaware knob number to replace my broken knob, I would appreciate it. If you have one for sale or can furnish me with a source, I will appreciate your supplying it to me. Thanks and 73, John, K5PGW