Late 4th-early 3rd millennium BC. A serpentine cylinder seal with bull frieze; accompanied by a museum-quality impression and typed and signed scholarly note issued by W.G. Lambert, Professor of Assyriology at the University of Birmingham, 1970-1993, which states: 'Cylinder Seal of Green Stone 12 x 12 mm. The design shows two recumbent horned quadrupeds, one after the other, with a line of dots forming a kind of terminal. This is a so-called Jemdet Nasr cylinder, from Mesopotamia or west Iran. The drilling, as often happens with Jedet [sic] Nasr seals, is begun from the bottom, but not completed. The seal is in fair condition.' 3.35 grams, 12mm (1/2"). The Signo collection, the property of a West London businessman, formed in the late 1980s-early 1990s; item number W-578; academically researched and catalogued by the late Professor Lambert in the early 1990s; accompanied by an original typed and signed scholarly note by Professor Wilfrid George Lambert.