WW1: An early English attempt to build body armor for the troops on the Western Front. Note the mask with slits for allowing the wearer limited vision. This is steel plate put together in medieval armor manner. Ironically, the “flak jacket” is of little use given the “sewing” together of small rectangles of steel plate making the jacket easily defeated by missiles hitting at the seams. Also, the weight of the contraption could have easily wear out even the strongest soldier.