12 x 15 on page 16 x 23 (centimeters, height x width)
Notes:
This is from an illustrated schoolbook, with one map on each page, accompanied by explanatory text. This page implicitly justifies rearmament by suggesting that the nation was surrounded by enemies. The images are simple, apparently intended for younger children, but the supporting text provides detail for those who want it.
The collection includes a number of German maps of the same period making the same point, particularly school atlases. See Subjects > Between the Wars.