Gents,
I wrote an article for KVE News a few years ago about the history of the steam cooker (Wiles Type, both 4 wheel and 'Junior') in Australian service.
It was published in the following edition of KVE News. Scroll down to page 16 to find it.
http://corowaswim-in.org/docs/Corowa...ber%202012.pdf
Mike C