Two antique Australian opal set brooches. Both 9ct, one made as a small gold map of Australia inset with a single square shape piece of white opal, framed by a wreath of gold with alternating applied red paste stones and grey pearls, along with a 1950's larger oval plaque brooch, set with a central white opal with black painted reverse bezel set within a wreath of applied gold leaves, fitted with pin and safety chain.