I fell in love with this lamp which I found in a little second hand shop, after noticing the stamps inside, I called the Tiffany Studios in New York and they told me that although it wasn't made at the Tiffany Studios, Louis was at the Panama Exhibition in 1915 and that it could be one of his exhibition pieces. I would love to find out the history of my lamp and also the true value of it. I have been told that the base is called a 'cat tail lily pad base. I may consider selling if the price is right.