What is this? Vintage Eagle Pin

celluloid, eagle, vintage pin, hitler, bone, antique

I found this in a box of junk fabulous stuff. I'm not sure exactly what it is. I think that's an eagle in the center medallion… and I know those are wings. But is this a special pin for an airline or maybe a military pin? I can't imagine it being anything more than costume jewelry….

I know it's a little dirty.. but what do you think? Special? Unique? or a dud…