A W.W. I cartoon by Alban B. Butler illustrating the elation that overcame artillerymen of the U.S. Army's 1st Division when they were charged with the task of firing the very first mustard gas shells ever to be fired by U.S. forces:
"For months Americans had suffered from repeated concentrations of German mustard gas without the chance to retaliate in kind".
[No date was given]
Click here to read more about gas warfare during World War One.