Sometimes I'll look at the eBay photos and just wonder how long those razors were used and how effective they were the last time somebody shaved with them. I saw one recently, which I should have screencapped, that had probably a good 1/3" frown -- measured from where the edge should have been to where it currently was at the center.

I sat there thinking, "Someone must have kept honing this thing and if they were honing it that way, they also must have been using it." The wear on the spine matched to where there was moderate wear on the ends with major wear in the center. Was this just some poor guy who didn't want to bother getting a new razor, or maybe even a barber who used it way too often?