4. Stamp seal 0.47 x 0.98 in. (1.19 x 2.49 cm) Date: -2300 - -1700ca. late 3rd–early 2nd millennium B.C. Geographic region: Bactria-Margiana Time period: Bronze Age Medium: Limestone Extent: 0.47 x 0.98 in. (1.19 x 2.49 cm)