This was part of a greater strategy employed by the British to exclude European powers (especially the ever-threatening Russian Empire) from exerting influence in the Middle East and disrupting communication lines with British-controlled India.
Thanks to the wonderful people at the Qatar Digital Library who have digitised more than 500,000 scans & documents from the archives of the India Office records and many more; we are able to see a transcript of the actual document signed below. Wikisource also has a transcribed copy.
|Page 1, from the Qatar Digital Library|
|Page 2, from the Qatar Digital Library|
- A Collection of Treaties and Engagements relating to the Persian Gulf Shaikhdoms and the Sultanate of Muscat and Oman in force up to the End of 1953' [19v] (40/92), British Library: India Office Records and Private Papers, IOR/R/15/1/738, in Qatar Digital Library <http://www.qdl.qa/en/archive/81055/vdc_100023550810.0x000029> [accessed 27 June 2015]