Some of the oldest known references to the goddess Isis are inscriptions, like the Pyramid texts. However, I have been interested in the visual depictions of the Egyptian gods and how they change throughout the millennia.
Wikipedia's section on the iconography of Isis says that Isis is usually depicted with wings when the image represents her protecting the dead. However, I have been unable to get a hold of the book referenced as a source, so I don't know how far that practice dates back. (The book is "The origins of Osiris and his cult" by J. Gwyn Griffiths)
In summary, I would like to know if there is a depiction of Isis with wings, older than the one in the tomb of Ramses III?