Hier die Antwort:

I scanned the images from an essay: Linda Williams, "Discipline and Fun: Psycho and Postmodern Cinema." In Reinventing Film Studies, eds. Christine Gledhill and Linda Williams, 351-378. London and New York: Arnold and Oxford University Press, 2000.

According to Williams, these photos were taken during the film's initial run In London, England.

The captions under the photos read: "Fragment of the audience at the Plaza Theatre, London.... Reproduced courtesy of the Academy of Motion Picture Arts and Sciences."