Anderson, Joseph. “Notice of a Small Figure in Jet of St James the Greater, Recently Presented to the Museum by James Gibson Craig, Esq., FSA Scot.: and Probably a Signaculum Worn by a Leprous Pilgrim to St Jago Di Compostella; With Notes on ’Pilgrims’ Signs’ of the Middle Ages, and a Stone Mould for Casting Leaden Tokens, Found at Dundrennan Abbey”. Proceedings of the Society of Antiquaries of Scotland, vol. 11, Nov. 1875, pp. 62-80, doi:10.9750/PSAS.011.62.80.