I think REICHENBERG or a misspelled variant of it.
Sue
When you look at the letter "R" in Rite of the Roman Catholic Church, they're quite different. Now looking closer at the "N" in North Wonthaggi, I don't think it's that either.
There was a "Missing Friends" notice put in a Tasmanian Newspaper in 1924 where Susan is looking for her aunt Mrs M Stordeur. She and her husband Adolphe Otto Stordeur were teachers. Her Aunt's maiden name was Oosthuisen, which SHOULD make Susan Blake's mother an Oosthuisen. I'm definitely not seeing that surname on the Marriage cert.