I have of course tried to locate this Pamela's site first - but wasn't aware of finding this design, so if anyone does recognize the piece, I would be very grateful to hear. Height is 5.1/4", and almost 6" in diameter - with a flat star-cut base, and the colour is that oily yellowish-green. Lots of wear on the base, with understandably one or two flea bites on the bottom. I have a feeling it may well be British, and if so my thanks to the Mods in advance for moving the post. As always, thanks for looking.