Stone stamp seals, Jamdat Naser period, about 3000 B.C., Iraq Museum

Stamp seals of stone, shell, etc., and their impressions. Stamp seals are small lumps of stone, often animal or gem-shaped (about 3 or 4 cm), with pictures carved on one side (about 1.5 to 3 cm). Impressions are lumps of clay with small pictures from cylinder seals or stamp seals impressed in them.