thanks m - I'm a great advocate of the Board's search facility, usually - but I was being impatient, and remembered that I had some of this information in a book which was to hand. However, to be honest, I did not know we had a good input from Nic - so thanks for that. I did once have two or three of these vases, but have now parted with them, but they do look good, and hopefully still fetch reasonable money.