Abstract: The volume contains papers relating to the right of navigation in the Shatt-el-Arab (also referred to as the Shatt-al-Arab).It includes correspondence relating to the following: the alignment of the Perso-Iraq frontier at the mouth of the Shatt-al-Arab; the right of Persian [Iranian] vessels to navigate the Shatt-al-Arab and to anchor in Iraq waters; the proposal that the Shatt-al-Arab should be treated as an international waterway, and that an international commission should be appointed to look after it; the proposed establishment of a Conservancy Board to control the navigation in the Shatt-al-Arab, and the proposal that the Conservancy Board should also be charged with the superintendence of lighting and buoying throughout the Persian Gulf.The main correspondents are as follows: the India Office; the Foreign Office; Sir Robert Henry Clive, HM Minister, Tehran; the Admiralty; the High Commissioner for Iraq; the Colonial Office; the Air Council (Air Ministry); and the Government of India Foreign and Political Department.The volume includes correspondence in French between Sir R H Clive and Mirza Abdul Hussein Khan Taimourtache (also spelled Teymourtache in the file) [Abdolhossein Teymūrtāsh], Minister of Court, Persia, dated 19 April 1928 (folios 353-354) and 26 July 1930 (folio 31).The volume includes a map and three charts of the Shatt al-Arab [IOR/L/PS/10/1098, f 131; IOR/L/PS/10/1098, f 163; IOR/L/PS/10/1098, f 262; and IOR/L/PS/10/1098, f 263].The volume includes a divider which gives the subject number, the year the subject file was opened, the subject heading, and a list of correspondence references by year. This is placed at the back of the correspondence.Physical description: Foliation: the foliation sequence (used for referencing) commences at the first folio with 1 and terminates at the last folio with 357; these numbers are written in pencil, are circled, and are located in the top right corner of the recto side of each folio.The foliation sequence does not include the front and back covers, nor does it include the leading and ending flyleaves.A previous foliation sequence, which is also circled, has been superseded and therefore crossed out.