With the recent report of a search team finding the location of the HMAS Sydney and HSK Kormoran, you might be interested in information available in the State Library of Western Australia (SLWA) collections.
The oral history collection has an interview with Leo (Len) Cooper who saw the Sydney a few days before it sank and Noel Owen Donovan who had photographs of the visit to Bunbury by HMAS Sydney in wartime.
The Library has a large postcard collection which includes one with an image of the Sydney, found at BA537/1. The ephemera collection also has information. Barbara Winter has written an English translation of the Kormoran’s log, “Kormoran, Schiff 41, Raider G”.
These and other items are available to look at in the library.