University of Birmingham.

Individual letters are regularly acquired, usually by purchase, to complement holdings of personal papers and institutional archives within the Special Collections Department.The letters are added to either a general sequence of autograph letters (described here) or one of a small number of separate sequences of autograph letters devoted to a particular individual.

Reference: University of Birmingham, Guide to Special Collections Archives and Manuscripts (http://www.is.bham.ac.uk/specialcoll/archives_btb.htm). Accessed February 2002.

...