I believe this is only half of the scene. In the whole scene, he is actually placing the cone on the "tree of life", which is not shown here, but I've seen it in other deptictions. This is the first really detailed picture I've run across so far and I'm desperately searching the British Museum online for the whole scene, if that is where you found this part.
Yes..its in the British Museum. Genies are often depicted beside sacred trees with the cone outstretched but its not always the case. I can't remember if this was a stand alone part of a frieze or if there was anything in front of the figure in the museum.There were so many amazing things to look at I was overwhelmed.
Grandson of Enlil. Son of Sin. Twin brother of Irnini/Ishtar. - This is UTU "The Bright One", Shamash in Akkadian. He was one of the Annunaki gods of ancient Sumer.
Remember the story of Gilgamesh? Having discovered that he was two-thirds god by birth, and therefore entitled to immortality? This is the god that Gigamesh pleaded with, in-person, to stand with him while he stated his case to the other Annunaki gods, as only they would know if his claim was true, and if so, only they could grant him immortality.
You think so? What makes you say that? He is wearing the horned helmet that indicates he is divine or semi divine but the symbols he carries are a cone and a bucket which are bog standard genie accessories...never be seen out without them.