This is quite tricky as there is not much info on these Aussie ones and the codes have an interchange to Aussie specific codes but from what I can work out so far it seems it was assembled in USA at Allen park Michigan on December 1960 if what I've worked out is right. I cant work much else out for now.
No not always and it is common for the older vehicles to come from overseas. Some vehicles are made in the country of origin and shipped then they have an Australian plate with codes that will be specific to Australia and sometimes some alteration for Aussie as well. This makes it hard to work out as there is not alot of info. You could contact Ford Australia and they may be able to help.