1. IOR/R/15/5/393/5 Reference (shelfmark): IOR/R/15/5/393/5 Title: India Office Political and Secret Department Confidential Memoranda: B 411 Note on Trade in the Persian Gulf (communicated by the Board of Trade) Collection Area: India Office Records and Private Papers Languages: English Date Range: Jun 1928-Jul 1928 Extent: 4pp