Hello all, wanted to get some extra opinions on this to see if I can gather any more information. Thank you!

My uncle has moved to Germany and left me a few pieces, one of them being this dagger. Since I am no expert, I wanted to post it here to get some feedback. I tried putting into my photo light box to get some more light but I did take the pictures with my phone so please forgive me if they are not clear. There is chipping on the grip near the cross-guards. Metals seem to be magnetic. The blade itself seems like it's seen some better days, the acid etch is still visible but not dark and pronounced. Scabbard has paint chips. I tried my best to make the markings on the back of blade and from what I can tell, it's RZM 1163/38 SS, F.&A. Helbig, Stienbach KRM. Thank you for any input.

A little background: My uncle, who has been an avid collector of everything under the sun for the last 40 years, has collected antique timepieces, old Persian rugs, hundreds of hummels, china, silverware, old Leica photography items, antique furniture, etc etc etc. Recently, he has decided to move to Germany and oversee his farms and his honeybees that he has had there for some time. To make the move easier on him, he literally spent his time until his last days here in the states selling off all his collectibles one by one. It was insane to see because all these collectibles that he owned, I had seen them over the years growing up and it was unfathomable to ever think of my uncle without thinking of these items. But life changes and you have to adapt to what you're given and my uncle felt it was best to open the doors to another chapter in his life.

Now onto the dagger itself, prior to my uncle's departure, he gave me a bunch of last minute items that he didn't have time to sell off and this dagger was one of them. So similar to the other stuff he gave me, I had listed this dagger to sell and at the time of my posting, all I knew was that it was a German Nazi dagger. I listed it on the selling websites for a small $300 because I didn't know any better and I eventually had to take down the ads because the messages were coming in nonstop. I would like to buy your dagger, can you ship to NY and I'll pay the extra shipping fee, can you ship to XYZ, can you list it on eBay and I can pay with PayPal to protect the transaction, etc etc etc. Mind you, these aren't the usual selling website scammers, these were real people that legit wanted to purchase this dagger asap. So I had to respectfully withhold and reconsider what I had since I've never seen such a large demand for an item. That's what lead me to doing some research and ultimately finding out some of the history of these daggers, their collectibility, and the prices some would sell for.

Here it is:

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