1. IOR/R/20/B/1136 Reference (shelfmark): IOR/R/20/B/1136 Title: File C.10/1 1937-40 Con. Reports and Returns: confidential reports on Colonial Service Officers serving in Aden, for the years 1937-1940: Civil Colony Officers Collection Area: India Office Records and Private Papers Languages: English Date Range: 1937-1940 Extent: 1 file