Scarce WWI USAS 413th Aero Squadron Enlisted Man Shoulder Patch

This is a scarce World War I United States Air Service 413th Aero Squadron enlisted man's shoulder patch. The patch shows the number 413 over a propeller.

Circa World War I.

About 3-3/4" height and 3-1/8" width.

Felt patch embroidered with white silk/cotton threads.

None.

None.

This is from a United States Air Service collection which we will be listing more of over the next few months. ebay VAR@VAR

7- (Very Fine-): The patch has moderate discoloration on embroidery.

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