Either way, NOS (don't think so) or a lightly tried factory edge (again doubtful)...I'd try the edge on the first shave attempt just to see.....

However, in the second photo the edge looks to be honed excessively at the toe making a more smiling geometry. Not a bad thing at all, but unless the image is distorted I'd say this edge has had some corrected damage, or just some inept honing, etc. etc..

Regardless, I think you made a good purchase ....providing there's nothing hidden.

Try it, and...well, hone it if necessary.

Regards,

Howard