20's Officers Air Service Overseas Cap. Coarse wool whipcord like material. Has an odd yellow and blue piped decoration. On the left side is a thick bullion winged prop directly embroidered into cap. On the right is a coffin lid 2nd lt officers rank. Gold silk like lining. Has the pilots name marked inside and a size 7 1/2. Made by Desmonds Los Angeles. Leather sweatband shows wear and is missing in a couple of places towrds the rear of cap.