Austbeacon: Welcome aboard!
You may see a photo of the aircraft your father flew at the top of page
41 of this thread.
The craft in question was a single-engine S62 (as you mention) as opposed to the twin-engine S61's which appear in the post above but 'hewn from the same rock' so to speak!
Your father's aircraft was registered VH-AND and he ditched on 24th August 1967 in the Bass Strait.
As we have a number of venerable Aussies reading this thread I am confident that you will get some feedback!
If you can source any photos from your Dad's helicopter flying days .. we would love to see them.
Rgds
Sav