January 9, 2021 at 10:15 AM #11 The previous picture came from Kutter's book from 1977. This is Linsenmaier's original from 1951:
June 12, 2023 at 8:39 AM #18 For good reproductions of the last 3 pages, go to https://www.e-periodica.ch/digbib/volumes?UID=ihf-001 and see volume 6. 6a is also from H. Kutter.