WWI German Helmets For Sale and other collectibles from WWI

Badge Pin

Identify a prospectus pin / plate?

I have a pilot pin / plate of my uncle, who served in the army. I tried to research the class is with little success. Master card looks like a flyer, but the shield is an eagle. Please help me understand what type it is. Thank you!

http://www.usamilitarymedals http://usmilitary.about.com/library/milinfo/arbadges/blaviator.htm http://www.usamilitarymedals.com/aviator-badges-c-2069_1201_1019.html?ummID=cb04a3e4199f2b35d846621eee4316cc. com/us-army-basic-aviation-badge-aircraft-crewman-badge-nickel-finish-p-2121.html? ummID = cb04a3e4199f2b35d846621eee4316cc