We ate this at a restaurant in Monte Morello which overlooks Florence. This is a special type of steak, from the Chianti beef and probably unable to find this type of beef in Australia. It is also a special cut, similar to the New York cut but different. You could probably substitute with another type of beef using the same cut.
http://italianfood.about.com/od/beefbracioleetc/r/blr0568.htm