1. IOR/X/14692/87A Reference (shelfmark): IOR/X/14692/87A Title: Plan Of Part Of The Island Chagos Or Diego Garcia. From a Survey made in the Drake Ketch 1774. [Scale of latitude approximately 1:91,000.] A. Dalrymple, 12 July 1784. Collection Area: Map Collections Languages: English Date Range: Unspecified Extent: 1 item