Could be either. I would like to hear you put that blade away in a new zip loc bag for a few days. Then break the seal and smell. I hope for your sake that the blade was put away wet, but there is always that worry about cell-rot. By the looks of that blade, you could go down a few grits to 1K or so to really clean it up. By my experience, once I start shaving with a blade...it never gets back to the "hand sand/clean-up" pile.