9th-6th century BC. A black jasper cylinder seal with procession of two winged horses with open mouths with a tree between; accompanied by a museum-quality impression. 5.42 grams, 18mm (3/4"). The Signo collection, the property of a West London businessman, formed in the late 1980s-early 1990s; item number W-852; academically researched and catalogued by the late Professor Lambert in the early 1990s.