Here's a link to some photos taken at their Renard Sound base in the Solomon Islands in 1944-5. These ships were built in Auckland.
Note the ships were repainted in the US Navy colours of light grey/dark grey, as they operated under the US Command.
Their primary role was anti submarine expecting a major attack by the Japanese midget subs.With one of the flotillas the Rolls 2 lb gun was replaced with additional Oerikon 20mm.
https://drive.google.com/file/d/1SSwato ... sp=sharing