A gray-scale photograph of a rocky landscape with a cluster of buildings atop a hill. The buildings feature multiple windows and a simple architectural style. In the foreground, a cobblestone street lined with wooden fencing runs alongside an empty space.

THE OLD MIDWIFERY COLLEGE ON NEITSYTPOLKU STREET
Photographer unknown, sometime between 1900 and 1906 (ca. 50 years before Petri’s birth). Photo source: Helsinki City Museum
The street on the left is Vuorimiehenkatu and the street across is Neitsytpolku.