This is what that would have looked like before it was ground all down to wobbly wavy bits. In that condition the poor thing isn't worth a tuna sandwich. If you can read the fine script on the spine, it refers to the grind as Concave
ahhh nice pic !!! had I saw this pic and the description from ScienceGuy I would not have know .. thanks guys as I couldn't tell from the original pics !! very cool razor in its natural design