So... back to the whatsit...
This piece will be difficult to ID without some exact knowledge of it's use. The American Eagle with outspread wings was used all over the place even before it's adoption as a national symbol. Often shown with shield and olive branches on business signs, instuments, paintings, statues, military, gadets, etc...
I think Trica got the closest with the "Folk Art" theme... I'd guess anytime 1800 - 1900. :P
PS: I use wikipedia, but always back it up - have found too much misrepresented historical data there.