Plans, diagrams and drawings of lights, beacons and other related matters, including experiments carried out by Robert Stevenson and Sons., 1810-circa 1932., Acc.10706/572-652. Business papers, notebooks, diaries, maps and plans of Robert Stevenson and Sons, civil engineers., Acc.10706/1-697. National Library of Scotland Archives and Manuscripts Division. https://nlssb.as.atlas-sys.com/repositories/2/archival_objects/96757 Accessed September 23, 2024.