That symbol is the Egyptian Sun God RA, who is associated with Horus. No one has ever even tried to explain to me what this symbol was doing on the front cover of jw literature at the time they were supposedly "chosen" by Christ. to represent God on earth.
The Egyptians, having the spirit of perversion, perverted much symoblism of the Hebrews for use in their idolatry. -- Isaiah 19:14.
Russell, who was never a member of the JW organization, chose the special symbolization of the sun disk with wings to represent several scriptures, especially that of Malachi 4:2.