Picked this up today as it was sat looking all bright and shiny on a charity shop shelf. Height is 16cm, top diameter is 14cm. It's green at the bottom and yellow the rest of the way up to the top. Weighty, highly polished base, no indication of maker. I've included a top down view and a shot of the base, plus two side on views. Can anyone point me in the right direction please as I am well out of my comfort zone with this, thanks!