Vintage Pure Silver WWII WW2 US Military Air Force Made In Mexico National shops Wings Propeller Pilot Badge Pin

This is a rare vintage WW2 pure silver aviation pilot pin in great vintage condition. This piece is stamped "silver made in mexico national" and is pure silver. This pin would be dated somewhere between the 1920s and the shops mid 1940s, and is an exceptionally rare variation of this pin. Please see photos for dull description.