Betar certificate belonging to Shlomo Arel (Shlomo Angel), Betar Italy branch, Ken Civitavecchia from period of his studies in Betar Naval School, articles by and about Shlomo Arel in the press, his letter about memories of his prison term in Acre Prison together with
Abdul Majid who confessed to him that he had killed Arlosoroff.
Death notice about his wife, Sarah Arel's, passing.