Hi Tomas,
Yes, as Christian says, this is an Austrian tinnie and relates directly to the beginnings of the national-socialist youth movement in Austria (and therefore of course to the Hitler Youth). Here's a little chronology on the NSDAJ:
1910-1918: in 1910 the first workers' youth organisation in Austria is formed within the Austrian "Deutsche Arbeiterpartei" (DAP - forerunner of the Austrian DNSDAP). This first youth organisation was called "Reichsverband deutscher jugendlicher Arbeiter Österreichs". and it had 5000 members prior to the outbreak of the First World War with the centre of the movement being the industrial area south of Vienna. It became dormant during the war before reappearing in Czechoslovakia under the name "Nationalsozialistischer Jugendverband". In Austria it continued to exist but effectively this was only on paper.
1922-1923: emergence of the NSJ (Nationalsozialistische Jugend) in Austria. In August 1922, the former "Reichsverband deutscher jugendlicher Arbeiter Österreichs" (mentioned above) is renamed to "
Vereinigung der nationalsozialstischen Jugend Österreichs". This new organisation is/was commonly known as the NSJ.
1926: the NSJ is renamed to NSDAJ (Nationalsozialistische deutsche Arbeiterjugend) effective from 3.3.1926.
My information comes from the
book "Jugend ohne Zukunft" which details the rise of the Hitler Youth in Austria. It has full footnotes and is a credible source so if we take the information in the book as our datum, the tinnie can't be from 1924 because clearly, the NSDAJ didn't yet exist. It must be a later tinnie produced to commemorate, perhaps, the beginnings of the NSDAJ for thiose who were members in this district of Vienna.