WWI era double-sided locket featuring an Australian soldier and young woman

World War one era double-sided, oval-shaped locket containing the portraits of the head and shoulders of an Australian soldier on one side and a young woman on the other.
The soldier is dressed in uniform and wearing his slouch hat with chin strap. The rising sun collar badges are visible on the lapels of uniform.
The young woman is formally dressed and has her hair pulled back. There is embroidered detail on the collar and front of her dress. She is wearing a locket of similar design containing the image of a man, but it doesn't appear to be the same soldier as on the other side.
The oval surrounds are made from metal with gold plating. The words 'Rolled Gold' are impressed at the top of the locket. A thin piece of glass covers each photograph. There is a metal swivel attachment at the top for threading a chain through.
There is some wear to the gold plating, with some of the base metal visible.
The locket is kept within a dark blue velvet lined jeweller's box. It has a cream fabric upper inside lid with the maker's details in matching dark blue, a metal catch and a dark blue leather cover.