September 13, 1923. Washington, D.C. “W.H. Murphy of the Protective Garment Corp. of New York stood less than ten feet from [Frederick County, Md.] Deputy Sheriff Charles W. Smith in police headquarters Wednesday and let the deputy fire a .38 caliber revolver straight at his chest. When the bullet hit, Murphy never batted an eye. Inventors ot the bulletproof vest, which weighs about 11 pounds, have put iten the market for the protection of police and other officers in emergency cases. The bullet which Deputy Smith fired into the vest Wednesday was presented to him for a souvenir.”
Found at Shorpy.com.