The device is war-time production so it has a bit of tarnish (patina) making it ideal to replace a lost device on a genuine ribbon bar.
I am also listing gold & silver swords - same hollow style.
I am clearing out some of my genuine devices. I have most of these from WWII. Please feel free to inquire. I also have German-made replica and genuine 15mm and 25mm ribbons which I may list later so keep watching.