Help with Planer Blades Please

[Bud]

I snuck into work today and had a look with the microscope at my planer blade. I don't know enough about it to figure out what I'm looking at because it looks like it might be a burr on both sides to me. I know nothing about the history of this blade so perhaps this isn't even helpful. I sent the pictures to Edge On Up this evening. If they can learn something from them then good. Maybe they will post the pictures and their thoughts on them.