artifact_id cdli_comments designation artifact_type period provenience written_in archive composite_no seal_no composites seals museum_no accession_no condition_description artifact_preservation period_comments provenience_comments artifact_type_comments is_provenience_uncertain is_period_uncertain is_artifact_type_uncertain is_school_text height thickness width weight elevation excavation_no findspot_square findspot_comments stratigraphic_level surface_preservation artifact_comments seal_information collections dates alternative_years genres languages materials publications_key publications_type publications_exact_ref publications_comment external_resources external_resources_key genres_comment genres_uncertain languages_uncertain materials_aspect materials_color materials_uncertain retired has_fragments is_artifact_fake redirect_artifact_id retired_comments 498305 "YBC 16502" tablet "Ur III (ca. 2100-2000 BC)" "Umma (mod. Tell Jokha)" S001780.5 "YBC 16502" 0 0 0 0 "Yale Babylonian Collection, New Haven, Connecticut, USA" 00.00.00.00 Letter Sumerian clay Mayr2005SITU history "SITU p. 154" "YBC; eBL" "BC-029740; YBC.16502" " " 0 0 0 0 0 0