It seems to be a decal that was applied to the leather. The 3 photos are original gelatin silver photographs of that Z-500 airplane. Photos measure 4 3/4" W X 3 3/4" H.
Nothing written on the backs. These come from the estate of Lt Donald C. Malcolm Douglas, Malcolm having served in both WWI and WWII - Malcolm was also a Judge, King County Superior Court, Seattle, WA.
Before the war, Donald C. During the war, Lt Donald Corwin Douglas was a pilot himself, of the B-17 and also worked in Las Vegas Army Air Field, Flight Test Section of Aircraft Maintenance at the Las Vegas Army Air Field, NV. He had to test fly any aircraft after maintenance - he also had to test fly any aircraft deemed "unsafe to fly". He himself had logged 1272 hours in the following aircraft.
Douglas graduated from Douglas Army Air Force Pilot School; he was at Hobbs Army Field Pilot School; Minter and later at Las Vegas. The item "WWII US Army Air Force Leather Insignia PATCH Photos Aircraft Airplane Z-500" is in sale since Wednesday, January 29, 2020. This item is in the category "Collectibles\Militaria\WW II (1939-45)\Original Period Items\United States\Patches". The seller is "portalquest1605" and is located in Southington, Connecticut.
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