Actress Peggy Cummins, best known for her performance as a trigger-happy femme fatale who robs banks with her lover in Joseph H. Lewis’s Gun Crazy (1949), died late last year at the age of 92, in London.

The subject in the negative Karsh is holding up remained a mystery for many years before we learned it was Peggy Cummins, who was photographed in 1946 for LIFE Magazine.

Read her obituary in the New York Times.