Help Identifying 1930 USN or USMC Pilot Wings Amcraft Attleboro Mass

[Von]

Any one feel like helping to Identify these wings. Any history or pricing on them would be great.
As far as i can tell they are 1930s USN or USMC Wings by Amcraft Attleboro Mass

made of Brass with a drop in lock for pin
The stamp reads:
Amcraft
Attleboro
Mass

[Walkwolf]

Hi Von, welcome to the Forum.

Nice set. Late 30's/WWII era, usually noted by 'berries'
in the shoulders, but typical Amcraft snowflake back.
Possibly post-WWII as well because of the brass
base metal..........

[gel65]

Very nice pair definitely pre ww2 late 30s