This World War II Gas Obstacle Course Chemical Warfare School certificate from Edwood Arsenal MD is a unique historical piece for collectors interested in militaria. The certificate is printed on high-quality paper and is in excellent condition, with no tears or marks – crease in the center does not detract. Very cool WWII historical ephemera. World War II Gas Obstacle Course Chemical Warfare Map & Certificate. This was my grandfather’s, a WWII vet, that completed this course. Very few have ever completed this course or even taken it. This certifies that (The Member) has successfully traversed the course. Signed by George Brooke Lt. Secretary of CW School. Still in great shape for it’s age, I don’t know much about this, so if you have any questions I will answer to the best of my ability. See pictures for details and condition. Please Check out my other items! Have a great day!