Hi BD,
Most of the examples that I've seen on various sites while trying to research mine (with hilt elements that curl down onto the blade) are 'all bronze'.
The Iron and bronze types are all much less common.
You might not find something 'exactly' the same.
Have a look at this one:
http://www.primigenius.com/shop/inde...iscell&id=2831
And attached a picture of a bronze one sold by Christies: