teusje has it - it's Pearce, WA.
The big clue are the "PN" codes - 14 Squadron RAAF is unique in that it was formed at Pearce on 6th February 1939 (initially with Ansons, subsequently Hudsons then Beauforts), was based for the entire war there and then disbanded (again at Pearce) on 10th December 1945. They never left home!