The poster shows American machine-gunners firing their tripod-mounted weapon in the trenches; the ammunition belt is composed of five-dollar war-savings stamps that wind toward the viewer as it is discharged. Like many of these posters encouraging the purchase of war bonds and stamps to support the war effort, it makes a direct link between civilian participation and success on the battlefield. This is one of several posters designed by Casper Emerson Jr. for the government during World War I. He was a well-known illustrator for such magazines as Puck, Judge, Success, Harper’s, and The Housewife as well as for a 1910 edition of The Arabian Nights, among other books. He was also celebrated as the inventor of “The Emerson Girl” for The Broadway Magazine in around 1900, one of several fashionable, free-spirited rivals to Charles Dana Gibson’s “Gibson Girl.”