2.3cm Shimmery Aubergine Vintage Buttons in Lots of 6 or 12

A deep rich shiny aubergine colour, almost dark brown in low light. There are depths and variations within the colour, characteristic of this kind of vintage plastic.
There are deep concentric circles around the rims and a slight circular indention around the 2 thread holes in the middle- this adds interest, texture and light catching potential to the buttons.
They are 2.3cm wide and I'm selling them as 6 loose or 12 on their original cards.