Katherine, if you can show a photo of your lamp,it would certainly be of great help in trying to identify your lamp. The lamp I am showing here, is the same as a lamp I saw over 20 years ago, which was stated to be Wembley Ware. I never bought that lamp at the time, as I was unsure if it was Wembley Ware, and it was expensive at the time, but bought my one on here years later as the price was right to take a chance on it. My lamp I do not think it is Wembley Ware, and I have seen Pates Pottery (a Sydney pottery), mentioned as the maker for this lamp. I put my one on as it could be the same as the one you mention, but of course it maybe a different lamp altogether.I am not even sure if you mean "Sea Shell" for your lamp.