It was actually distributed in North America under Norelco (yes, as in Norelco razors). It says "Norelco" on the front and says "made in Austria by AKG".
I've looked at those mics and often wondered if Norelco did, in fact, get the design idea for their razors from that microphone.
10-15 years ago no one knew what the hell that mic was, now you're hard pressed to find them......and when you do, people are awfully proud of them and not very willing to part with them.