Papers of the Sykes family of Sledmere > Papers of Sir Mark Sykes (1879-1919) (Second deposit of Papers of the Sykes family) > Correspondence > File. General correspondence: letters and telegrams to Mark Sykes, A-H > Letter. W. Cater & Co. Ltd., Naval & Military Outfitters & Contractors, 56 Pall Mall, London to Mark Sykes