All of these, plus the wonderful Buttonholer in the other post, were for machines that simply went up and down, before all of the highly complex machines that came in the 70s and 80s. You know, the ones that break down, unlike an old model 66. The foot does all of the clever work.
The foot in the upper right is a Ruffler...who knew antique machines could do all of this?
https://www.youtube.com/watch?v=pp2Dim2wJK4
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