下敷き
A Japanese word for various types of materials placed under a sheet of paper for writing, either to prevent marking on the sheets below or to provide a better surface for writing. Usually referred to as a pencilboard in English.

This tag is used for scans from pencilboards. For pencilboards in the image, use [[shitajiki (object)]].

h4. External links
* "Wikipedia":[https://en.wikipedia.org/wiki/Pencil_board]
shitajiki