Vintage knot sweater keeper connector gold tone metal antiqued

Vintage pair of buttons connected by a chain I think these might be used to put through the button holes of a cardigan sweater or cape/cloak to keep it in place? Knot coil design Darkened, antiqued gold tone metal It has some wear and darkened patina but still nice as is See photo next to quarter for size reference Ships fast! POSSa828LD3N2L