UBB.threads Forums Edged Weapons Miscellaneous Dagger Forum Longest German dagger DLV Officer - opinions pls

I understand. Actually ZOZA was also there holding this dagger for sale but we both passeed on it on that day. Anyway - What do sugest I do in this case. Report this fact to thie police?
I need to inspect the dagger closely. What tels you this is the same dagger?