1. IOR/L/PS/6/542, Coll 33/11 Reference (shelfmark): IOR/L/PS/6/542, Coll 33/11 Title: Further papers regarding Dutch encroachments in Sumatra - letter from the Chief of Assahan to the Resident Councillor at Penang expressing anxiety about the Dutch annexation of Siak and Batu Bara Collection Area: India Office Records and Private Papers Languages: English Date Range: Jul 1864-Sep 1864 Extent: 1 file