Jervise, Andrew. “Notes Regarding Historical and Antiquarian Peculiarities of the Districts in Forfarshire, Where the Various Relics Now Presented to the Museum of the Society Were Found”. Proceedings of the Society of Antiquaries of Scotland 2 (November 30, 1856): 64–70. Accessed June 16, 2024. https://journals.socantscot.org/index.php/psas/article/view/4392.