Originally housed in a ringbinder this file is a counterpart of Acc.13328/1658. The original ringbinder was annotated as follows: "L-Z, January 1999, Researchers Correspondence", however there are outlying letters beyond this date, with items dating from between 1986-1994. Letters have been arranged alphabetically by researcher surname, subject surname, and/or organisation name. Original and copy letters are present. File also contains a manuscript index of correspondents and topics for the L-Z file held across Acc.13328/1658-1659.