P. Rutenberg, "Water Resources of Palestine, I. Jordan Valley, Preliminary Project", a Confidential Report issued in Jerasalem, dated June 1920, bilingual (English and Hebrew), pp. 61 (Rutenberg proposal, 8 Dec. 1920, TNA CO 733/9) The Crown Agents for the Colonies and Mr. Pinhas Rutenberg, "Agreement for the Granting of a Concession for the Utilization of the Waters of the Rivers Jordan and Yarmouk and Their Affluents for Generating and Supplying Electrical Energy", witnessed by Burchells Solicitors of Westminster, London; Herbert Oppenheimer Nathan and Vandyk, Solicitors, London; and Harry Sacher, Barrister at Law and Notary Public, Jerusalem, dated 21 September 1921.