It does look at first like the green one on Vidfletch's site, but that one appears to have a wider neck at the bottom which then rises more vertically, whereas mine has a narrower neck at the bottom before then flaring out. I think the top is different too, although I couldn't see it clearly from the pic. I couldn't access your first link, so presume it was just a closeup of the same vase?
It was a devil to clean and I had to leave some soapy water in it for a couple of days to try to soak off dirt on the bottom. The neck is so narrow that its impossible to put anything down to give it a clean. Even the water took a while to get down but it looks okay now :roll: