The Phyl Coe Mysteries was a syndicated radio series that came out in 1936, with the lead character's name designed to reflect the sponsor, Philco Radio Tubes. PHYL (short for Phyllis) COE is described as the "beautiful girl detective". She was a private investigator who was smart, aggressive, and a "take-charge" lady. In one episode where a magician is shot on stage, Phyl, who is attending the performance, with her boy friend, leaps to the stage, barks orders to theatre personnel, and solves the crime before the cops even get there. In other mysteries, she identifies the thief of a famous painting, solves the mystery involving a new death-ray gun, and solves a murder aboard an aeroplane.
Cast and crew have not yet been identified. None of the solutions to each episode appear in it, since the original listeners were supposed to send in their answers to Philco and win cash prizes. About 12 episodes are known to be in circulation. At the heigth of its popularity about 250 radio stations throughout the U.S. were airing this 15 program. The contest was run by Geare-Marston, Inc of Philadelphia.