How to present a degree that was earned abroad on a business card? I live in Australia and hold a M.A. degree from the University of Hamburg. 

That degree doesn't exist in Australia, so I can't get it acknowledged through the accrediting bodies.

What is the etiquette to present such a degree on a business card?

[Update] I refer to a particular degree in the area of child education and not to the term 'Master of Arts', which of course does exist in Australia.
I suggest that you present it as it was awarded, and perhaps list the university as well. Most people will accept it at face value, though you may get the occasional question about what it means. 

Australia isn't so isolated that it can't accept international terminology. 

This would be different if you are in a field that requires certain certification, but that is a question to be directed at those providing the cert.