Good afternoon. This is my first-ever post to the forum. I wondered if I could get feedback on this RAD Officer's Dagger? Is it authentic? It was purchased in an Austrian antique shop several years ago. Thank you for your help.

RAD - 1.JPG (16.72 KB, 238 downloads)
RAD - 2.JPG (17.69 KB, 237 downloads)
RAD - 3.JPG (14.67 KB, 237 downloads)
RAD - 4.JPG (15.81 KB, 237 downloads)
RAD - 5.JPG (14.69 KB, 238 downloads)