Nice, Clean One Piece WWI US Air Service (USAS) Officer Collar Insignia

This is a nice, clean United States Air Service officer's collar insignia, which is a one-piece winged propeller.

Circa World War I.

Approximately 1" in height and 11/16" in width.

Cooper/bronze and nickel-plated brass.

Horizontal pin with C catch.

This is from a United States Army Air Forces collection which we will be listing more of over the next few months. MDJX08 LADEX1/11

8- (Very Fine-Excellent): This pin has light wear and a very handsome tarnish.

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