Source: https://www.boredpanda.com/spy-camera-secret-street-photography-carl-stormer-norway/19-Year-Old Student Hides Spy Camera In His Clothing To Take Secret Street Photos In The 1890s
Carl Størmer (1872-1957) enjoyed a hobby that was very, very unusual at the time. He walked around Oslo, Norway in the 1890s with his spy camera and secretly took everyday pictures of people. The subjects in Størmer's pictures appear in their natural state. It extremely differs from the grave and strict posing trends that dominated in photography during those years.