Photograph showing a 75 mm shrapnel smoke shell containing sulphur trioxide and 75 grams of black powder. The image was taken by a Chemical Warfare Service photographer on April 2, 1919. The shell has an issued number of AU 75. Additional notes mention the purpose of the shell as well, but details are not provided.

---

Size: 8486px × 5794px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1, 75, activities, agent, air, american, ammunition, army, artillery, attack, au, base, battlefield, black, chemical, combat, defense, description, detection, documentation, efficacy, effort, environmental, explosive, gas, grenade, historical, impact, issued, manufacturing, mask, military, mm, munitions, notes, number, photo, photograph, photographer, photography, pollution, powder, reaction, service, shell, shrapnel, smok, smoke, strategy, sulphur, tactics, technology, toxic, trioxide, war, warfare, weapon, weapons, world, zone