Sanderson, James. “Account of the Plate-Marks Used in Scotland since the Year 1457, and Chronological List of Those of Edinburgh from 1681; To Which Is Added a Note of Those Used in Glasgow”. Proceedings of the Society of Antiquaries of Scotland 4 (November 30, 1863): 541-548. Accessed March 31, 2023. http://journals.socantscot.org/index.php/psas/article/view/4966.