6th century BC. A heart-shaped carnelian bead with vertical piercing, etched panel to one face with winged sun-disc in a pelletted frame, zoomorphic design to the reverse. 19 grams, 38mm (1 1/2"). The Signo collection, the property of a West London businessman, formed in the late 1980s-early 1990s; academically researched and catalogued by the late Professor Lambert in the early 1990s.