The Jawne was a Jewish Reformrealgymnasium in Cologne.
The school took its name from the town of Yavne near Tel Aviv, where the Jewish Supreme Court, the Sanhedrin, after the destruction of Jerusalem in 70 CE, tried to maintain the Jewish traditions with a school of Jewish law.
The Jawne in Cologne was the first and only Jewish secondary school in the Rhineland. It was founded by Rabbi Emanuel Carlebach, brother of rabbi Ephraim Carlebach, of the congregation Adass Jeshurum around Easter 1919, was built in 1921 and was recognized by the state in 1925 as a Real-Progymnasium and Lizeum, with the rights of a semi-public institution.
Wikipedia https://en.wikipedia.org/wiki/Jawne
Address 26 Albertusstraße, Köln 50667, Germany
Coordinates 50°56'23.571" N 6°56'40.878" E