Notice of a Fragment of a Silver Penannular Brooch, ornamented with Gold Filigree Work and Amber Settings, found at Achavrole, Dunbeath, Caithness, in 1860: and of two Silver Brooches, the property of Andrew Heiton, F.S.A. Scot., said to have been found in the neighbourhood of Perth. PSAS. 1880;14:445-452. doi:10.9750/PSAS.014.445.452