1. IOR/R/20/G/27 Reference (shelfmark): IOR/R/20/G/27 Title: Aden Protectorate and Kamaran. Estimates of revenue and expenditure including memorandum: 1956-1957 Aden: Government Printer Collection Area: India Office Records and Private Papers Languages: English Date Range: 1956-1957 Extent: 1 volume