An extremely rare West Australian 'Donnybrook' miners brooch, circa 1900, attributed to Donovan & Overland, Jewellery Manufacturers, Perth. Depicting small nuggets, windlass, pick and shovel, with mounted arched lettering 'Donnybrook'. Marked 18C with safety chain. Length 48 mm weight 6.4 grams. Reference: Gold & Silversmithing in Western Australia, a History, by Dr. Dorothy Erickson, page 76