Buch: Rous, Samuel H. (1921). The Victor Book of the Opera: Stories of Seventy Grand Operas. Camden: Victor Talking Machine Company, p. 335
Titel des Bildes: Floria Tosca places a crucifix on the chest of Scarpia, whom she has just killed.
Fotograf: unbekannt
©Wikipedia: Public domain. File:Tosca Act 2 Victrola Book of Opera.
