Thanks Joe, I wish I had seen your suggestion before I worked on that knob...... I did mar it a little but I think it will work itself out as it is used...... I can turn it with my fingers now!! I am so happy!!
My sister-in-law has another treadle that she's going to keep..... I know more about cleaning them up now.... thanks to all you vintage enthusiasts...... so I can help her with hers.
I only have 5 machines and a serger (2 featherweights, 2 Vikings, and now this treadle). I feel a new thing to start collecting.... I see them sell at auctions all summer.... now I'm on the lookout!! Don't know where I will put them but I'll find a place. HeeHee!!