BEING RESEARCHED 1930s-50s NSA Airline? Hat Badge? Wing? NOT FOR SALE UNTIL IDed

This is a beautiful, slightly curved hat badge (or possibly a wing) for an unidentified entity, probably an airline. The center is enameled in blue with white lettering and was made by Green Company of Kansas City.

Circa 1930s-1950s.

Approximately 7/8" in height and 2-7/16" in width.

Gilt brass, enamel.

Two screw posts with covered catches.

GREEN K.C.

This is from an accumulation of unidentified items which we will be listing more of over the next few months. Item will not be sold until it is identified. TR@FJM13 VBJ08 LX12/13

8- (Very Fine-Excellent): The item has only some very light wear.

As with all my artifacts, this piece is guaranteed to be original, as described.