I know this has now been id'd as IOW studio glass, however I've just picked up on the significance of the link Chris gave (sorry Chris, I'm a bit slow on the uptake sometimes). The link shows a piece of 'Azurene type' glass, a donut shaped bowl in blue with gold leaf on it. It is from St Johns and it says on the website that without the documentation attached to it, it could have been mistaken for an IOW piece. The significance for me is, that with just reading the book, I had not realised that St Johns also did some pieces other than animals, with gold leaf on them. The book does talk about Kerry Glass mentioning 3 main ranges and another 'core' range , so the implication is that there are other ranges not mentioned, however without Sue knowing the information she has given, I would have gone down the route of thinking I had an 'unusual' possibly Kerry Glass piece.
Thanks again everyone, for your input and help :sun: I'm delighted it has turned out to be a piece of IOW glass. As it turns out it is a more than great replacement for the donut shaped piece, as I can see the inky blue better in this bowl.
m