“Note on a Late Celtic Armlet of Bronze, Now Presented to the National Museum; With Notes on the Identification of Two Other Late Celtic Armlets in the Museum, and on a Massive Bronze Armlet Recently Found in Sutherlandshire”. 1904. Proceedings of the Society of Antiquaries of Scotland 38 (November): 460-67. https://doi.org/10.9750/PSAS.038.460.467.