colour of the cap differed by gymnasium and grade. In case of the Ludwig Meyn Gymnasium in Uetersen, for example, in 1920: Untertertia-students wore green...

Ludwig Meyn (1 October 1820, Pinneberg − 4 November 1878, Uetersen), was a German agricultural scientist, soil scientist, geologist, journalist and mineralogist...

appeared in Biography: A Game, a comedy play by Max Frisch at the Ludwig-Meyn-Gymnasium in Uetersen. As one of the original Alles was zählt cast members...