This is a 3D printable WWII German Close Combat Clasp. It was awarded to men serving in all branches of the military for a certain amount of hand-to-hand combat experiences. It was awarded in 3 levels: bronze, silver and gold.
I have modeled and scaled it off of an original item in my collection.
The photos have been censored because some people get offended by a certain symbol. However, the STL file is unedited, and is 100% accurate.