Fröbelgabe (or kindergarten pixelation)

A beautiful example of a kindergarten exercise - specifically the 14th of Friedrich Fröbel's "gifts"
intended to allow young children free range of play and expression.
This 26-panel paper weaving book shows a variety of patterns,
including one page with the makers initials and the date of creation.

This example is apparently American, from 1892, made by "M. Kistler"