spinners

Does anyone happen to know which aircraft this part belongs to? I acquired it in Fort Worth, TX and the gentleman whose estate I bought it from, it was my understanding that he worked for one of the local museums for many years and had an eye for collecting interesting things. It appears to be...

1) Up until a few days ago I have always believed the reason the Luftwaffe painted spirals on the spinners was to alert ground crew the prop was spinning much the same way the allies painted the tips yellow. I gather some people think it was an optical illusion to dazzle gunners which makes no...