1. IOR/R/20/C/596 Reference (shelfmark): IOR/R/20/C/596 Title: File 191/39 Pt I Ord. Protest by the King of the Yemen about the landing and flying of British aeroplanes at An Nabia, etc Collection Area: India Office Records and Private Papers Languages: English Date Range: Mar 1939-Dec 1939 Extent: 1 file