Antique vintage cotton Johnson & Johnson Esmarch Triangular Bandage from around the late 19th or early 20th century, featuring printed graphic illustrations demonstrating various emergency first aid bandaging, sling, and tourniquet applications.Origin & Design: Named after the German surgeon Friedrich von Esmarch, these pictorial cotton cloths were manufactured by Johnson & Johnson (with print markings for New Brunswick, N.J. and Chicago, Ill.) to visually train soldiers and civilians on proper trauma response.Functionality: The triangular shape allowed it to be folded, tied, or configured in dozens of different ways to immobilize fractures, create arm slings, or compress bleeding wounds across multiple sites.