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 Alf Billingham, Hon. Sec., Malton Branch of the Postman's Federation, 25 Wentworth St, Malton, inviting Major Sykes to their annual outing.