b'57498496 499 500An antique 18ct white gold and platinumA mariner shell bead necklaceA double strand mariner shell bead and opal bar brooch, early 20th century, with deep purple stain, necklace,stamped 18ct, PLAT., 172cm long 86cm long4.5cm wide, 4.7 grams total $400600$400600 $400600501497 A mariner shell bead necklace,A sterling silver and marcasite173cm longkookaburra brooch set with an opal;$400600 together with a pair of sterling silver and marcasite kookaburra earrings, 502the brooch 3cm wide (2)$200300A mariner shell bead necklace with pink stain,173cm long498 $400600A Tasmanian mariner shell bead necklace, 503170cm long$400600 A Tasmanian shell bead necklace,136cm long$300500 504A 9ct gold money clip engraved with an emu in cartouche, 20th century,5cm wide, 15 grams$450550 502'