Thanks again for the replies and links. I will see what the pewter society can tell me, thanks bigwull.
Ipcress, believe me, I have scoured every bit of the vase for marks, but nothing that I can see. The whole thing seems as one, so I don't believe I could remove the lower edge. Mine is definitely more detailed than those others, with the cherubs, fish, birds, reeds, and it's a mermaid caught in the net. I must admit, when I first saw it, I actually thought it was a bit ugly, but it has grown on me so much. One of my favourite possessions