1. IOR/R/20/B/1104 Reference (shelfmark): IOR/R/20/B/1104 Title: File C.4/16/20 1940 Sec. Defence Scheme: persons detained under the Aden Defence Regulations: Yahya ibn Qasim al-Matari Collection Area: India Office Records and Private Papers Languages: English Date Range: May 1940-Apr 1948 Extent: 1 file