Original British WWII Royal Air Force RAF Auxiliary Pilot Flight Lieutenant’s Uniform Jacket with Fighter Squadron Pin & Pilot’s Wings - Wound Stripe U.S. Flare Guns The underside of the sweatband

The underside of the sweatband has numerous unit markings and what could be a 1940 date

The barrel has a nice gray patina over most of the surface

however it is a bit faint:

2004 in Houston

Original British WWII Royal Air Force RAF Auxiliary Pilot Flight Lieutenant’s Uniform Jacket with Fighter Squadron Pin & Pilot’s Wings - Wound Stripe U.S. Flare Guns The underside of the sweatbandOriginal Item. Only One Available. This is a lovely WWII Royal Air Force RAF Auxiliary Flight Lieutenant's uniform jacket in good service worn condition. The two stripes on each cuff denote the rank of Flight Lieutenant, and the A collar insignia denote Auxiliary. There is a great set of RAF pilots wings stitched over the left breast pocket, and a pin below that denoting Fighter Squadron 19. There is a wound stripe stitched onto the left cuff. No. 19