This edition printed in 2021 includes an introduction by Ulrich Lehner, a chapter of commentary and extensive notes, and a biography by Otto Michael Knab's son, Bernard M., who also translated the work into English. These were written by Catholic Otto during the rise of the Third Reich in the 30s. This copy is illustrated by James Brunsman.

There are a few indentations on the front and back cover. Please see the photos. The interior is unmarked.