This is interesting in that the Sumerian goddess Ninkharsag is synonymous with the Egyptian Goddess Isis.    From Wordnik.com.  [Name Stargate | SciFi, Fantasy & Horror Collectibles] Reference

Over the first is the lance of Marduk, over the second the mason's square of Nabû, and over the third is the symbol of the goddess Ninkharsag, the Creatress.    From Wordnik.com.  [The Babylonian Legends of the Creation] Reference