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Unlike 'true wedge', 'full hollow' has another interpretation that is very meaningful - the maximum hollowing you can achieve by grinding with a single wheel. When the two sides of the blade meet at...

I had a really really old razor (late 1700s or early 1800s) with convex profile. I am pretty sure it was abused to that state.
You can hone those or 'true wedge) freehand like a knife, or make a...