Thread: New Flea Market find.

You have an extreme angle on the top-half. Below that is a much thinner angular grind, done longitudinally.
The bottom grind is not absolutely 'straight' in most cases I have seen. Some do seem pretty straight.
I expect a rounded stone, applied lengthwise.
Just thinly ground at an even angle, a bit concaved. Below the wedge-ground massive spine.
Make sense? Like you have big razor on top, thinner, small razor at bottom.
Angles are done at steps.
Not much smooth and actual 'hollow grinding' .