[1]
Ferguson, R.S. 1887. Notice of a Penannular Brooch of Silver, with Ends like Thistle-Heads, found at Casterton, Kirkby Lonsdale, Westmoreland. Proceedings of the Society of Antiquaries of Scotland. 21, (Nov. 1887), 141–142. DOI:https://doi.org/10.9750/PSAS.021.141.142.