Max — Your three palm trees, the two in the pictures, and the one on the GMB stand at Gayton, are nothing like the five shown in Gulliver and the single late ashtray example shown in Notley/Miller's.
My conclusions are that many glassworks, probably including central European glass houses, made palm trees for sale in the British and British Empire marketplace, and that your three styles are unlikely to be by Walsh or Boulton & Mills.
... and would some kind soul explain the essential characteristic or characteristics of Victorian and Edwardian fancy glass that makes it so immediately identifiable as a product of the Stourbridge group of glassworks. I am sure that Mervyn Gulliver, Charles Hajdamach, and many others, including myself, would find this skill most useful.
Bernard C.
