Trent Art Ware was a brand name of Bakewell Bros pottery at
McDonaldtown, NSW. According to
Aussiepottery the Trent Art Ware name was introduced in the early 1950s, though the shapes had been produced from the 1930s under the name "Newtone". The Bakewell pottery closed in 1955.
The handles of this vase have a simple twist.
I've had this vase for many years, probably picked up in an op shop in the early 1980s.
The bottom stamp, showing that the vase was "Made in Australia".
There are some interesting Australian pottery websites, including
Australian Decorative Pottery, and
Australian Pottery.
This post was edited on 8 Sep 2010 after some helpful comments by Tim.