Another thing to remember is we usually see razors with textbook corrosion patterns and we have that fixed in our minds as to what cell rot looks like.

That can be dangerous because often times it will start in just one small area and if not recognized it spreads with lightening speed.

I had a razor that I saw a rust spot in one place maybe 5mm diameter and it was just a light spot that I cleaned and polished out easily and put back away. About three months later I took it out and it had been put away with some heavy duty silicon based preservative. Then there were two spots and I had serious pitting into the blade. It was cell rot. I had similar with a prize Puma Gold Razor. Just one small spot which rapidly became 3 spots and deep pitting.