These objects are either used for marking objects, or are reminants of the impressions.  These include stamps for bricks, cylinder seals, and seal impressions.  They are made of stone terricotta for impressing clay or mud. 

Objects: Seals, Stamps, and Sealings Export: JSON - XML - CSV Clay Seals and Sealings

Object U Number Museum Number (UPM Date Reg Number) Museum Number (BM Registration Number) Museum Number (UPM B-number) Description (Catalog Card)
17797 32-40-345 (none) (none) Stamp seal. Shell. One side flattened and rough representation of animal drilled and scratched on. [drawing 1:1]
17806C (none) (none) (none) Groups: From one burial. (A) Gold fillet, of narrow thin ribbon, twisted. (B) [B.1-.2] A pair of gold earrings, each consisting of two complete earrings intertwined, of the small hollow lunate type: in each case, one earring is fatter than the other: D.'s 15mm and 13mm respectively. One hoop is broken. (C) Cylinder seal, lapis lazuli, standing, human figures roughly cut. (D) Gold finger ring, hollow tube pressed in along the periphery thus [drawing]. (E) Beads: gold and carnelian, lapis and silver diamonds: gold and carnelian barrels and double conoids; mixed types, large lentoids, bugles, balls and double conoids of carnelian, agate, lapis. For order see field notes.
17811D 32-40-325 (none) (none) Group. From one burial. (A) [A, E-I] Six gold earrings, small hollow lunate type, worn in sets of 3 in each earrings, small hollow lunate type, worn in sets of 3 in each ear. (B) Gold finger ring, thin metal with edges bent inwards to form a ribbed hoop. [drawing] (C) Beads: lapis diamonds, gold double conoids, silver disks, carnelian and steatite lentoids. (D) Cylinder seal, shell: hunter and lion and 2 columns of inscription.
17835A 32-40-308 (none) (none) [A-B] Two lion's heads. Silhouetted in profile. White calcite, originally painted red, but the color gone: both are really stamp seals with rough designs drill-cut on the flat lower surface. Both are pierced for suspension from the top of the head to the bottom of the mane. [drawing]
17850 32-40-333, 32-40-333 (none) (none) Cylinder (seal?) unpierced. White limestone with 4 columns of inscription. Two names. NU-UR-KU-BI son of DUG-GA-AN-SA and E-MU-MA-NI-DA son of NU-UR-KU-BI. HC 1931 / 1
17871 32-40-326 (none) (none) Cylinder seal. Dark steatite. Badly chipped. Presentation scene with seated goddess and 2 standing figures and 3 columns of inscription.
17872 32-40-334 (none) (none) Cylinder seal. Diorite. Damaged, and part of the surface gone. Design worked entirely with the drill: a standing figure with arms raised and two seated figures, and an object which may be a libation vase.
17877 32-40-323 (none) (none) Cylinder seal. Grey steatite. Seated deity & standing attendant. Poor cutting.
18111B 32-40-332 (none) (none) [A] Beads. Carnelian rings: amethyst double conoids, agate date-shaped and flat oval; blue paste date shaped; agate cylindrical; oval domical agate, large shell cylinder with roughly engraved winged gryphon? And minute carnelian balls, also [B] cylinder seal, glazed frit; a scorpion and a winged gryphon. Also fragments of a [C] copper fibula, bow type.
18124A 32-40-346 (none) (none) [A-DK] Seal impressions. A large collection, giving impressions (baked) of Greek, Persian and Babylonian gems. Green coins, etc. (See separate notes)
18124B 32-40-347 (none) (none) [A-DK] Seal impressions. A large collection, giving impressions (baked) of Greek, Persian and Babylonian gems. Green coins, etc. (See separate notes)
181244AO 32-40-386 (none) (none) [A-DK] Seal impressions. A large collection, giving impressions (baked) of Greek, Persian and Babylonian gems. Green coins, etc. (See separate notes)
18124AA 32-40-372 (none) (none) [A-DK] Seal impressions. A large collection, giving impressions (baked) of Greek, Persian and Babylonian gems. Green coins, etc. (See separate notes)
18124AB 32-40-373 (none) (none) [A-DK] Seal impressions. A large collection, giving impressions (baked) of Greek, Persian and Babylonian gems. Green coins, etc. (See separate notes)
18124AC 32-40-374 (none) (none) [A-DK] Seal impressions. A large collection, giving impressions (baked) of Greek, Persian and Babylonian gems. Green coins, etc. (See separate notes)
18124AD 32-40-375 (none) (none) [A-DK] Seal impressions. A large collection, giving impressions (baked) of Greek, Persian and Babylonian gems. Green coins, etc. (See separate notes)
18124AE 32-40-376 (none) (none) [A-DK] Seal impressions. A large collection, giving impressions (baked) of Greek, Persian and Babylonian gems. Green coins, etc. (See separate notes)
18124AF 32-40-377 (none) (none) [A-DK] Seal impressions. A large collection, giving impressions (baked) of Greek, Persian and Babylonian gems. Green coins, etc. (See separate notes)
18124AG 32-40-378 (none) (none) [A-DK] Seal impressions. A large collection, giving impressions (baked) of Greek, Persian and Babylonian gems. Green coins, etc. (See separate notes)
18124AH 32-40-379 (none) (none) [A-DK] Seal impressions. A large collection, giving impressions (baked) of Greek, Persian and Babylonian gems. Green coins, etc. (See separate notes)
18124AI 32-40-380 (none) (none) [A-DK] Seal impressions. A large collection, giving impressions (baked) of Greek, Persian and Babylonian gems. Green coins, etc. (See separate notes)
18124AJ 32-40-381 (none) (none) [A-DK] Seal impressions. A large collection, giving impressions (baked) of Greek, Persian and Babylonian gems. Green coins, etc. (See separate notes)
18124AK 32-40-382 (none) (none) [A-DK] Seal impressions. A large collection, giving impressions (baked) of Greek, Persian and Babylonian gems. Green coins, etc. (See separate notes)
18124AL 32-40-383 (none) (none) [A-DK] Seal impressions. A large collection, giving impressions (baked) of Greek, Persian and Babylonian gems. Green coins, etc. (See separate notes)
18124AM 32-40-384 (none) (none) [A-DK] Seal impressions. A large collection, giving impressions (baked) of Greek, Persian and Babylonian gems. Green coins, etc. (See separate notes)