In 1947, the President of the Berlin Jewish Community Siegmund Weltlinger constituted the Working Group Churches and Religious Communities in Greater Berlin (AKR). To strengthen the Jewish position within that body, he initiated the sub-group ‘Non-Christian Religions’, uniting Jews, Muslims and Buddhists. The contribution looks back on their earlier co-operation, inquires what of it could be revived and what was silenced, tracing the cooperation that enfolded in the post-war period.