UBB.threads Forums Edged Weapons Miscellaneous Dagger Forum SS folding dagger

Hi, just hoping to get some opinions about this knife. The seller says :

The marking on the handle are RZM M7/66/34/ followed by the nazi SS symbol.
The other part of the handle also has an SS symbol followed by Streifendierst which I believe was the watch patrol or police unit of the hitler youth, they were usually recruited into the SS, gestapo and deaths head squadrons.

Karl Eickhorn Solingen marked blade.

Any ideas of value?

Photo attached. Thanks in advance.