Brook, Alexander 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 (November):192-99. https://doi.org/10.9750/PSAS.023.192.199.