1. IOR/X/14692/90 Reference (shelfmark): IOR/X/14692/90 Title: Chart Of The Pitts Track [Chagos Archipelago] 1763. William Stevens. [Scale of latitude approximately 1:730,000.] A. Dalrymple, 22 September 1784. Collection Area: Map Collections Languages: English Date Range: Unspecified Extent: 1 item