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Here is one I had. I could swear it had not been honed a bit. I taped the spine and it surely did not take much to have it splitting hairs. They did not have tape to use back then and some were less...

Just tape the spine. "touch up" the factory edge. Shave with it! Who would know? 110 years from now, someone will call it NOS!
It might have already been done for all we know!

From the looks of it, I would put a layer of tape on the spine and hone it up. I have had a few like that. They hone up sooooo easy and shave wonderfully. Nice work!