Cursiter, James W. “Notice of a Wood-Carver’s Tool-Box, With Celtic Ornamentation, Recently Discovered in a Peat Moss in the Parish of Birsay, Orkney”. Proceedings of the Society of Antiquaries of Scotland 20 (November 30, 1886): 47–50. Accessed April 29, 2024. https://journals.socantscot.org/index.php/psas/article/view/6179.