Looks just like the American version, though the chassis is quite different. Power transformer. Which every Australian set seemed to have. Did they ban hot chassises? Not unreasonable, as their powerline is 240VAC. Speaker looks to have been replaced.
The American version:
But one thing I notice, most Australian radios were "stationized", but this Philco wasn't. But this Tasma has been "stationized" (like Packard Bell used to call it).
full disclosure, I pirated these pix from these Australian ebay auctions (no affiliation):
http://cgi.ebay.com.au/PERFECT-TASMA...71466844172902
http://cgi.ebay.com.au/PHILCO-1948-A...item3caba4a5b6
http://cgi.ebay.com/Vintage-Philco-4...item588691d56e