15ct yellow gold miners nugget brooch by Willis & Sons circa early 1900s, featuring a central nugget on a double bar, and with engraved triangle designs and ball finials marked 'Unicorn, 15, Fleece' (rubbed weight 6.7 grams. Length 48 mm. Provenance: Mt. Magnet, Western Australia References: Australian Jewellers Makers & marks, by Cavill Cocks & Grace, p.269 gold & Silversmithing in Western Australia by Dorothy Erickson, p.452