I think AUS is off. I have it on one of my radios too.
That is one sweet radio!
Radiomusem has some more info on it:
http://www.radiomuseum.org/r/siemens_schatulle_m47.html
The specs on it are quite impressive. Sold for 575 DM when new which puts it at the top of the line. Also has 11 tubes and a noted output of 14 watts which is more than double the normal German table top of the period. Also has 12 FM circuits which is at least 3 or 4 more than your average German radio.
So you got yourself a keeper!!