1. IOR/R/20/B/1100 Reference (shelfmark): IOR/R/20/B/1100 Title: File C.4/16/15 1940 Sec. Defence Scheme: persons detained under the Aden Defence Regulations: Ahmad Muhammad Ismail al-Masir Collection Area: India Office Records and Private Papers Languages: English Date Range: May 1940-May 1945 Extent: 1 file