3rd millennium BC. A bronze stamp seal, discoid with slightly domed upper face, pierced trapezoidal handle, image of a zebu with bird above. 67 grams, 44mm (1 3/4"). The Signo collection, the property of a West London businessman, formed in the late 1980s-early 1990s; collection number Z-144; academically researched and catalogued by the late Professor Lambert in the early 1990s.