Letter book containing wet-press copies of letters concerning the magazine 'Progress', a publication of the Free Church of Scotland printed by T and A Constable., 1901-1902., MS.23512. 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/56858 Accessed September 23, 2024.