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New York Detectives Learn Honigman’s Sign Language

November 21, 1923
See Original Daily Bulletin From This Date

Twenty-five detectives have completed one of the three weeks’ course being given at the detective school by Aaron Honigman of Montreal who has invented a sign language by which police officials may communicate with each other in the presence of prisoners or suspects without being detected.

The code is based on such natural acts as moving a cigar in one’s mouth, adjusting a tie or looking at a watch. The detective students are devoting two hours a day to the Honigman system, the inventor demonstrating his method with the aid of his daughter, Lillian, thirteen years old, who is expert at it.

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