Holt of the Secret Service Part 12: The Stolen Signal

In this 15 part serial Secret Service agent Jack Holt, along with his partner, agent R49, are sent to stop a gang of counterfeiters that have kidnapped the government's best engraver and are forcing him to print undetectable fraudulent money. / List by Chapters: / Holt of the Secret Service Part 1: Chaotic Greek / Holt of the Secret Service Part 2: Ramparts of Revenge / Holt of the Secret Service Part 3: Illicit Wealth / Holt of the Secret Service Part 4: Menaced by Fate / Holt of the Secret Service Part 5: Exits to Terror / Holt of the Secret Service Part 6: Deadly Doom / Holt of the Secret Service Part 7: Out of the Past / Holt of the Secret Service Part 8: Escape to Peril / Holt of the Secret Service Part 9: Sealed in Silence / Holt of the Secret Service Part 10: Named to Die / Holt of the Secret Service Part 11: Ominous Warnings / Holt of the Secret Service Part 12: The Stolen Signal / Holt of the Secret Service Part 13: Prison of Jeopardy / Holt of the Secret Service Part 14: Afire Afloat / Holt of the Secret Service Part 15: Yielded Hostage