Hello from a new member. I hope someone here can help me identify this hat. It looks like a Cossack hat to me, but I cannot find reference to it. I acquired this from the son a a B-24 ball turret gunner who was shot down in Austria at the end of WWII. The area his plane crashed was in the hands of the Soviet army. He, and his crew traded their flight hats to their Soviet hosts for their hats. Here is a photo of his crew wearing the hats they traded from the Soviets, and you can clearly see this hat on a number of heads. What is it, and does it have any value?

Thank You