I'l take a shot at these...
Im going to say I think they are vintage real (Not Restrikes) and maybe Sterling but more likely Sterling plated Brass.
I would think if they were Sterling, they would be marked as such. But you never know... of course if there are spots of verdgris green.
which kinda looks like you have some there... Id lean toward Plated brass.
The experts can check me on that. If you have a shot of the back with the pin closed include that so every one can see the cam.
Looks good to go! Nice wing!
Maybe they are pre war??? or ww2 thru Korea as the wings were often reused.....
Authorities will weigh in...
Edited by rooster77, 21 April 2019 - 05:22 PM.