This is a highly unusual item being a silver coated ounce of metal in the shape of Australia with state boundaries marked.
The photographs were difficult to make given the reflective nature of the metal.
Overall it is in nice condition and although we suspect that it was probably originally sold as a tourism item we have been unable to locate any similar examples.
The age is unknown as is the manufacturing source.
As a collectible it really is wonderful and not something that your friends are likely to have.