Anderson, Joseph. “Notice of a Casket of Cetacean Bone, Carved With Interlaced Patterns in Panels, Exhibited by Miss Drysdale, Kilrie House, Kirkcaldy”. Proceedings of the Society of Antiquaries of Scotland, vol. 20, Nov. 1886, pp. 390-6, doi:10.9750/PSAS.020.390.396.