Third Reich did have skull/crossbones and griffins.....
Russia used double headed eagles but had different items grasped in it's talons.
The Cossacks also used double headed eagle/crossed swords......
Does this appear to have something in it's mouth? OR is it the tongue sticking out?
Wondering if it is more modern? It would help answer alot of questions...please post a picture of the back of the item!!!!! The clasp will help date the item as well! There is so much made these days that is trendy.....
There was a private society group at Yale......
Scottish Rite used a double headed eagle....32nd Degree Eagle Pendant......
And lets not forget the Masonic symbols.....
Countries that use double headed eagle
http://www.museumstuff.com/learn/topics/double_headed_eagle::sub::Use_By_Other_Countr ies