I clean out people's houses, this was in a dresser.  not exactly sure what it is but it's in great condition and clean. 

tag looks vintage made by OTTO "One Size Fits Most"  Quality Headwear 19-004  

It's fairly big. 

I googled it: 

The Boeing B-29 Superfortress is an American four-engined propeller-driven heavy bomber, designed by Boeing and flown primarily by the United States during World War II and the Korean War. Named in allusion to its predecessor, the B-17 Flying Fortress, the Superfortress was designed for high-altitude strategic bombing, but also excelled in low-altitude night incendiary bombing, and in dropping naval mines to blockade Japan. B-29s dropped the atomic bombs on Hiroshima and Nagasaki, the only aircraft ever to drop nuclear weapons in combat

If you live in Los Angeles, I have the exact title on craigs list you can see where I am located for pickup