There are special artisans, Sandies, who specialize in sanding wood. They are spin off of the Masons and have their own secret society. You’ll know them by their crest. They emerged around the 13th century around the time people began wearing lighter clothing. When they wore heavy britches, people did not notice the roughness (and splinters) of their chairs. When butt splinters became an epidemics a faction of the Masons emerged to solve this problem. This was before sandpaper. The Sandies gathered crushed shells, seeds and sand in their palms and then by performing a secret ritual, began vibrating at a high frequency. When they laid their grit onto a surface and applied their palm, rough wood and stone quickly became smooth as glass.
And amazingly, their hands stayed soft and callus-free.