Papers of the Sykes family of Sledmere > Papers of Sir Mark Sykes (1879-1919) (Second deposit of Papers of the Sykes family) > Correspondence > File of general correspondence. Letters and telegrams to Mark Sykes > Letter from E J C Forster, Royal Exchange Assurance, Middleton Chambers, Lowgate, Hull and a letter from the Commercial Union Assurance Company, Ltd, Park Row, Leeds