Letter book of T and A Constable containing wet-press copies of letters concerning the Industrial Exhibition of Industry, Science and Art held at Edinburgh., April-November 1886., MS.23509. Letter books, correspondence and other records of the printing firm of T and A Constable, Edinburgh, together with records of the Edinburgh Press, which was amalgamated with the firm in 1936., MSS.23237-23617. National Library of Scotland Archives and Manuscripts Division. https://nlssb.as.atlas-sys.com/repositories/2/archival_objects/56854 Accessed September 24, 2024.