Callander, J. “Notice of (1) A Seventeenth-Century Sun-Dial from Wigtownshire; And (2) a Stele, Discovered in Galatia, Asia Minor, Decorated With a Design Resembling the Mirror and Comb Symbols Found in Scotland”. Proceedings of the Society of Antiquaries of Scotland, Vol. 44, Nov. 1910, pp. 169-85, doi:10.9750/PSAS.044.169.185.