You might check the Roman Imperial Eagle. The Third Reich Eagle is derived from the German Imperial Eagle, which again stems from the Roman Empire.
The Zoroastrian/Persian Farvahar resembles the Ancient Egyptian winged sun:
http://en.wikipedia.org/wiki/Winged_sun
Well .. I never put much stock in anything from wikipedia - but you may be correct about the Romans - however, if you go back further into Hitler’s obsession with the occult - I still wonder if he used the middle eastern symbol - somehow believing it would have more power.