Getting there! The vase has a top diameter of 3" (7.5cm). The colour, as you correctly observed, is missing in a few patches around the top rim but the colour is definitely in the glass - it hasn't been applied. I also noticed, upon close examination of the fairly uneven base, that there actually is a large B as on my other vase like this one - it's barely visible and wouldn't really be identifiable if I hadn't seen another like it. As I said though, this one is heavier than the first one I had. Thanks for all your help. Anne Cheers