Not sure what the proper name is for the barcode-like marks a polisher leaves under the habiki, but I was wondering if there's any references out there to "read" them. Someone polished one of my blades, likely during/pre-WWII and I'm just sort of curious about it. If there's a post on here about it, could someone point me in the right direction? I've looked but I could just be missing it. Thanks!