In May 1933, the Austrian Chancellor, Engelbert Dollfuss, banned demonstrations altogether, barricading off the centre of Vienna. May Day was the most important event in the urban calendar, a political festival on a mass scale that validated Vienna’s status as a socialist city. Marchers converged on the city centre from all quarters, led by the powerful Austrian Social Democratic Party. Here, Tudor-Hart has captured a barricade on the Operngasse, a street in the centre of Vienna. The foreground is filled with barbed wire, its linear quality emphasised by the strong sunlight. In the shadow in the behind soldiers are visible.