Regency 12ct gold and agate Cachet Breloque, unmarked (tested as 12ct), in the form of a box, set with agate body and cover within gold mounts, set with a hinged top and clasp, in tones of brown, white, black and orange, length 1.5 cm published: Chatelaines: utility to glorious Extravagance by Genevieve Cummins and Nerylla Tanunton, colour plate 145