Glen - thank you very much for going to all this trouble! I haven't got the corresponding petaloid vase, but I have never seen an Australian piece with a domed, ground base like that.
I seem to recall we had a discussion about this piece before and that you already came to the conclusion that it wasn't Australian. You're definitely right, but it doesn't help to identify who did make it! Sigh.
I've gone through your Sowerby CD now (which is highly highly recommended everyone!!). There are a few Sowerby and/or Sowerby inspired pieces in the Australian catalogues. They are not the most exciting designs, so I don't think they would have bothered copying them. Haven't time tonight, but at some point in the future (probably after the next assignment is done) I'll drag out the numbers and get pics.
Just as a general question, did Sowerby make anything in uranium yellow in the 1930s?
Cheers Glen, and thanks for all your help and patience!