The Deutsche Nationale Verein fur Osterreich is a forerunner of the National Socialist Party in Austria beginning at the turn of the century. From a different Wiki:
"Austrian National Socialism was a Pan-German movement that was formed at the beginning of the 20th century. The movement took a concrete form on November 15, 1903 when the German Worker's Party (DAP) was established in Austria with its secretariat stationed in the town of Aussig. It was suppressed under the rule of Engelbert Dollfuss (1932-34), with its political organization, the DNSAP ("German National Socialist Workers' Party") banned in early 1933, but revived and made part of the German Nazi Party after the German annexation of Austria in 1938."
http://en.wikipedia.org/wiki/Austrian_N ... _Socialism for more info.
As for the saying; this appears to be taken from a drama in five acts written by Karl Schoenherr and published in Vienna in 1902 called:
Sonnwendtrag. Sorry, I'm not up on Austrian literature to be able to provide deeper insight into this reference. But in the play, the speakers are sitting at a bar having their beers and conversation, and a part of the toast made in response is this expression "durch muss des Kieles erz."
Again, someone more versed in old Austrian literature (pardon the pun

) may correct me, but my best translation of this expression would be something like, "a keel of Iron is needed to get through." Since a ship is depicted, makes sense. But there must be some deeper allegorical meaning that slips me (again, sorry for the multiple puns

)
Very interesting Cinderella.
Timbres