Brook, A. J. S. (1889) “Notice of a Silver Brooch with Black Letter Inscription and Ornamentation in Niello, the Property of Miss Steven of Bellahouston, and of a Large Brass Highland Brooch with Incised Ornamentation, the Property of Mrs W R Mitford, 33 Coates Gardens Edinburgh”, Proceedings of the Society of Antiquaries of Scotland, 23, pp. 192–199. doi: 10.9750/PSAS.023.192.199.