So Germans were intersted in Persia before Hitler.

Also looks very clean I guess it is typical.

Why did they have Persian king's photo on the wall?? I always though this habit of sticking leader's picture on the wall started with Pahlavis. That is why these pictures are so interesting.

Thanks.

 In 1907, a cultural agreement between the German Empire and Persia led to the founding of the first German school in Tehran, where students, from the very first grade, studied German for nine hours a week. Funded by both the Persian (12,000 tomans) and German governments (3,000 tomans), the school was well-equipped with laboratories and sport facilities (Hedāyat, p. 74; ʿĀqelī, ed., pp. 25-27).

It led to the Persian high school degree, but imparted knowledge far exceeding the usual high school level, so that its exclusively Persian graduates often found employment in high Persian government positions. Its graduates, a number of whom had continued their study in Germany, provided the technical expertise for the establishment and running of the Persian railway system.

Putting king's photo on the wall is just a very old custom and i think for first time they did that in Dar Alfonun High School.