Vintage French postcard. Collection Artistique de la Maison de la Bonne Presse, Paris. The martyrdom of St. Cecilia, set in Roman Antiquity, was a beloved subject in late 19th and early 20th century Catholic visuals, including a film by the Roman Cines company Cines:
Santa Cecilia (Enrique Santos, 1911), starring Fernanda Negri Pouget. See also
en.wikipedia.org/wiki/Saint_Cecilia 