For 25 years, Hamburg-based collector Jochen Raiß scoured flea markets for historical amateur photographs.
Over the years he accumulated 91 such photos, now collected into a book, Women in Trees.
After finding a photo of a woman smiling in a tree, he started to notice this was a recurrent theme, especially popular between the 1920s and 1950s.
“The women exert a great effort to hold on to these trees without losing their balance.
“A number of the photographers have created images that possess a remarkable depth and beauty,” he wrote in the book’s introduction.