These guys will tell you for sure, Fritz:
Would like an opinion of this KM mark, thoughts, the frame is properly marked on both sides
Both of the KM markings look FAKE to me. It is possible to have a KM HSC with both of these markings but the marking themselves look sloppy and incorrect IMHO.
Aim small, mis small.
I was reluctant to say so, but I agree. There have been some fakes for sale recently.
It is bad.
Looks fake to me.