5 books in series

Professors Zwillinge

Professors Zwillinge is a 5-book series with 5 primary works first released in 1923 with contributions by Else Ury.

#1

#1 of 5 in Professors Zwillinge

1923 • 383 pages

#3

#3 of 5 in Professors Zwillinge

1927 • 189 pages

#4

#4 of 5 in Professors Zwillinge

1928 • 188 pages