Cursiter, James W. “Notices (1) of a Bronze Dagger, With Its Handle of Horn, Recently Found in the Island of Rousay; And (2) of an Inscription in Tree-Runes, Recently Discovered on a Stone in the Stone Circle of Stennis, Orkney”. Proceedings of the Society of Antiquaries of Scotland 42 (November 30, 1908): 74–78. Accessed April 25, 2024. https://journals.socantscot.org/index.php/psas/article/view/7124.