Historical Context
Editorially reviewedWithin the collection window the detachable lightning fork is an Old Babylonian glyptic device of Ishkur/Adad. Earlier Akkadian art shows the storm god as a figure rather than a free fork. First-millennium palace and kudurru lightning groups lie outside the fence and must not be back-dated as Sumerian. The bull that sometimes accompanies the fork is a later mount than the third-millennium lion-dragon and is not itself the emblem.
Provenance: Ishchali Is. 34:74 in Frankfort, OIP 72; Morgan Seal 511 (Porada, CANES, p. 58). Isolated fork as Old Babylonian glyptic badge.
Research status: reviewed · reviewed 02/09/2026
Sources
3 referencesFrankfort, Stratified Cylinder Seals from the Diyala Region (OIP 72)
Frankfort, Henri, with a chapter by Thorkild Jacobsen. Stratified Cylinder Seals from the Diyala Region. Oriental Institute Publications 72. Chicago: University of Chicago Press, 1955, including Ishchali Is. 34:74. (Oriental Institute / ISAC, University of Chicago)
Supports: Documents the Old Babylonian isolated lightning fork in excavated Diyala/Ishchali glyptic, distinct from Sargonic god-in-scene images.
Morgan Seal 511 (Porada, CANES)
Porada, Edith. Corpus of Ancient Near Eastern Seals in North American Collections I. The Collection of the Pierpont Morgan Library. New York: Pantheon, 1948, p. 58, Morgan Seal 511. (The Morgan Library & Museum)
Supports: Old Babylonian weather god with lightning fork; supports the fork as Adad's emblem, not a generic thunderbolt.
Schwemer, Daniel, in Ancient Mesopotamian Gods and Goddesses, Ishkur/Adad (god). ORACC. Lightning bolts; lion-dragon mount in third-millennium art, largely replaced by the bull from Ur III onward. (ORACC / University of Pennsylvania)
Supports: Separates the storm-god's lightning attribute from later monumental lightning clusters and from the changing animal mount.
How to cite this page
Forked Lightning of Ishkur/Adad — Documented Akkadian Motif, Old Babylonian. Sanctum Hex Vault. Reviewed 02/09/2026. https://vault.sanctumhex.com/symbols/historically-documented-sumerian-and-early-akkadian-visual-motif-types-from-southern-mesopotamia-c-3500-1800-bce-drawn-from-cylinder-seals-votive-plaques-temple-fittings-and-royal-standards-motif-types-only-exclude-modern-anunnaki-claims-invented-occult-seals-and-later-neo-assyrian-palace-types-presented-as-sumerian-forked-lightning-of-ishkur-adad-documented-akkadian-motif-old-babylonian
https://vault.sanctumhex.com/symbols/historically-documented-sumerian-and-early-akkadian-visual-motif-types-from-southern-mesopotamia-c-3500-1800-bce-drawn-from-cylinder-seals-votive-plaques-temple-fittings-and-royal-standards-motif-types-only-exclude-modern-anunnaki-claims-invented-occult-seals-and-later-neo-assyrian-palace-types-presented-as-sumerian-forked-lightning-of-ishkur-adad-documented-akkadian-motif-old-babylonianCelestial
Forked Lightning of Ishkur/Adad — Documented Akkadian Motif, Old Babylonian
A compact two- or three-pronged lightning fork used as Ishkur/Adad's extractable emblem on Old Babylonian seals, not a generic thunderbolt.
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