Kinghorn G. Notes on the Discovery of a Deposit of Polished Stone Axes and Oval Knives of Porphyry, &c., at Modesty, near Bridge of Walls, Shetland. PSAS [Internet]. 1895 Nov. 30 [cited 2024 May 5];29:48-54. Available from: https://journals.socantscot.org/index.php/psas/article/view/6575