sought-after ! Super Rare WWII Unknown Fighter Pilot Unit Patch Theater Bullion Bomber

I dont really know much about it; I got it as my inheritance from my grampa in an envelope with my name on it, but he never told me anything about it. And for years I have tried to find out more about it, but I can't find another one online, and everyone I have shown it to, except for one worker at the WWII airforce museum in Colorado Springs who I showed it to, claims hes seen one before and believes it's a British fighter patch made in Germany by a civilian non nazi tailor/seamstress during the war. But I still have yet to find another like it. It may be the only one left of its kind. Asking $2000 or finest offer.