Falterschonheit: exotische schmetterlinge in farbigen naturaufnahmen.
Bern: Iris Books, 1951. Large octavo, 12 colour plates, fine copy, paperback. Foreword by Hermann Hesse, text in German. Exotic butterflies. More
Bern: Iris Books, 1951. Large octavo, 12 colour plates, fine copy, paperback. Foreword by Hermann Hesse, text in German. Exotic butterflies. More