Anyone have a couple of these for sale?

I have one with the small tuning knob but I need two with this large knob. The knobs are not interchangable - I tired. I could re-thread the one I have but why mess with it if I can get the proper one = someone else might need it.

I'll trade

I just bought a muffler with small knob and TWO felt heads. I don't have it yet - it's in the mail. Will look at trading also.