Original German WWII Silver Grade Infantry Assault Badge - Unmarked Solid Back U.S. Uniforms It looks like it was

It looks like it was either kept as an unissued sample

The scabbard is a fine straight example with no major dents or bends

and there is even a clear 54 in a circle stamp on one

This basically translates to "Made at Seki in Mino Province by Hattori Masahiro"

These have clear optics

Original German WWII Silver Grade Infantry Assault Badge - Unmarked Solid Back U.S. Uniforms It looks like it wasOriginal Items: Only One Available. Called in German a Infanterie Sturmabzeichen in Silber, this genuine badge is constructed of silvered zinc or possibly tombak alloy. It still retains most of the original silver wash, however it has tarnished overall on the front and back, so it is mostly dark, with a few areas still bright. The design consists of an oval oak wreath tied together at the base via a ribbon, with a national eagle clutching a mobile