1. IOR/L/PS/10/66, f 456 Reference (shelfmark): IOR/L/PS/10/66, f 456 Title: Aden Boundary Commission Survey Sketch Accompanying No. 21 of 15th March 1904 Scope & Content: A printed map of border region of the British protectorate of Aden. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1904 Extent: 1 folio