Next small step - to link circumstantial evidence that help to "ID/ Identify" unusual ww2 related Eagles.
Looks like there is connection between the "Plastic Eagle" presented before and the Polish Veterans Organisation(s) in the USA (Polish American Legion?).
I would say that the Plastic Eagle is quite rare (despite being made most likely after the war in 50-70ts?). However, looks like the design of it somehow stood the test of time and was applied on the small lapel pin that - itself looks to be quite modern.