Thread: Is this Cell Rot ?

The area affected looks more like it was from moisture on the scales where the blade comes to rest. Keep it out of heat (sunlight) and keep it dry. Boxing up a razor that may get cell rot is a bad idea in my opinion but if you do take it out often and look for dull discoloration on the blade in a more cloudy/speckled pattern.
It never hurts to add some protection to the blade like Tuff Glide. The pitting would have to be sanded out and may not be worth it to you as long as the pits don't turn red. They will hold moisture a lot more the a smooth surface.

Nice razor :<0)