Begun as over 20 popular short stories in Black Mask, there were films and novels before the stories were brought to radio under various names. The series aired on CBS. The radio show was sustained by the network when a sponsor could not be found. Sponsors of the show include Anchor Hocking, Toni home permanents, Toni Shampoo and Philip Morris.
Box 13 was a syndicated radio drama about the escapades of newspaperman-turned-mystery novelist Dan Holliday, played by film star Alan Ladd. Created by Ladd's company, Mayfair Productions, Box 13 premiered on December 31, 1947, over Mutual's New York flagship, WOR.