I have a K98k with frog, medium brown plastic handle but no blade markings. Blade is blued, about mint, factory sharpened, but the lack of markings makes me wonder if it is commercial. And what is a commercial one anyway. How how much does the affect the value ? Sorry, no pics, too old to take a good picture. Also have another one just like, but with markings but no scabbard,what is that worth, without the scabbard ?