The items ranged from WWI to WWII, and this panel may be the ' newest ' item in the lot. Wide ranging. One thing that makes me think it may be post war are the two phillips head screws in the bottom left. Did they use phillips head screws in U. S. WWI stuff? Forgive my ignorance. Just a thought.
A WWII Vet's estate. Also a steering yoke, with a mic button on the top right side. I don't know what you call these but I'll say joystick handles with button in the top to fire guns. Oxygen masks, oxygen ' regulator ' and other very interesting relics.