Sharpening Pictures
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Knife Grinder
by Francisco de Goya
The Knife Grinders
by Gustave Courbet
Man supervising another sharpening an axe with a boy turning the wheel
by Biagio Pupini
Sharpening of Knives
by David Teniers
Sharpening Workman
by Schopperum Hartman
A water wheel for sharpening
by Charles Holtzapffel.

Page 1130, figure 1029 in his 1850 book, Turning and Mechanical Manipulation, Vol. 3 - Abrasive and Other Processes not Accomplished with Cutting Tools

A small water wheel for sharpening
by Charles Holtzapffel.

Page 1132, figure 1030 in his 1850 book, Turning and Mechanical Manipulation, Vol. 3 - Abrasive and Other Processes not Accomplished with Cutting Tools