RZM code M 7/27 on an SA dagger

[Don Bible]

Is the RZM code M 7/27 with a single circle considered to be a fake blade on an SA dagger?
Thanks.

[lakesidetrader]

No Sir. That's how Puma executed their mark.

[Don Bible]

Thanks Paul. The reason for my question is that I recently purchased this beater unmarked blade SS dagger that came from the estate of an 82nd Airborne veteran. He had replaced the broken SS blade with the SA blade shown here beside the dagger. The SA blade seems to have a rather high ridge running down the center of the blade, which made me think he might have purchased a repro blade for the SS grip and guards, which are pretty decent. Any comments by you will be appreciated.
Thanks,
Don Bible

[Don Bible]

other side of blades