Dubarry - Powder Compact

Although this is not marked as Dubarry I have seen this compact named as such so I am going to accept that it is a compact from the English cosmetic company Dubarry.   It reminds me a bit of Wedgewood jasperware however I don't know what it is made from beneath the "plastic" cover.  There is no powder left inside but a small piece of paper beneath the empty godet tells me a replacement is available and that the colour was Rachel.  About 5cm or 2 inches in diameter.