Question on Singer part (feed dog cover plate???)
The item circled in the photo below looks like a feed dog cover plate. It was included in the sale of a Singer model 15-91. Since it is photographed with the buttonhole attachment, is this part used with the buttonhole attachment?
I've got quite a few Singer buttonhole attachments here but I've never used them & none of them included the part that is circled in the photo.
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