Smith, John. 1867. “Notice of a Small Bronze Blade Found in a Cinerary Urn at Balblair, Sutherlandshire; Also Two Small Bronze Plates, in the Collection of His Grace the Duke of Sutherland”. Proceedings of the Society of Antiquaries of Scotland 7 (November):475-77. https://doi.org/10.9750/PSAS.007.475.477.