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Diachronic overview of the use of seals in the ANE
| Uruk IV | tablets regularly sealed | seal impressed prior to inscription | |
| Uruk III | tablets only occasionally sealed | seal impressed prior to inscription | |
| Early Dynastic I-II | no sealed tablets | ||
| Early Dynastic IIIa | no sealed tablets | ||
| Early Dynastic IIIb | no sealed tablets | ||
| Old Akkadian | tablets occasionally sealed | seal impressed following inscription |
