I think you did well to pick that razor up. It looks like the real deal and not a fake of any sort. It appears to be in good condition needing very little work to clean it up. There looks to be some corrosion on the bevel which may take a little extra work bevel setting on the hones to remove but it should hone up nicely after that.

I don't think it falls anywhere near the junk category so you may want to clean it up yourself and have it professionally honed instead of using it as a honing sacrifice.

Bob