Wortfeld gibt die Auswahlliste für Titel wieder, die bei der Bestellung von Spiegel online erscheint (allerdings verdoppelt).
Wortfeld reproduces (with some repetitions) a list of titles you can choose from if you want to try out the Spiegel Online e-paper:
You can be Prof. Dr. Dr., but not just plain Dr. Dr. You can be Mr. but not Ms. (to say nothing of dropping the full stop). Frau seems to be missing too.
It’s rather strange, because Spiegel Online lets you choose Herr/Frau/Firma separately. Maybe Mr. and Ir. are the Dutch titles “meester in de rechten” and “ingenieur”?
That makes sense – I was wondering about Ir. The selection is quite bizarre, however.