Joe Dope cleaned his rifle, oh yes is a 1941 U.S. Army Ordnance Department cartoon poster signed by Warrant Officer Will Eisner. In four rhymed panels Joe cleans his rifle once, the barrel pits within a week, and his score falls; the moral says to clean rifles every day for three days after use (NAID 514702).
Rhymed verse carries the lesson in four panels
Joe cleans the rifle. A week passes. A cross-section of the barrel shows pits forming. Joe misses the target, and a sergeant lets him hear about it. The verse runs across the panels in rhyme.
Joe Dope / cleaned his rifle, oh yes- / But he cleaned it just once- / and in less / Than a week the thing pits / So Joe gets no more hits / And the sergeant's remarks / you can guess!
[banner:] ONE WEEK LATER
AFTER ONLY ONE CLEANING RIFLE SWEATS.... FORMING PITS IN BARREL, DESTROYING ACCURACY
Moral: RIFLES SHOULD BE CLEANED EVERY DAY FOR THREE DAYS AFTER USE!
Don't be a dope! HANDLE EQUIPMENT RIGHT!
[signature: WARRANT OFF. Will Eisner, ORDNANCE]
[imprint:] ORDNANCE DEPARTMENT U. S. ARMY
The signature names Eisner as an Ordnance warrant officer
The artist signed with his rank and branch, "WARRANT OFF. Will Eisner, ORDNANCE." The Ordnance Department, U.S. Army, is the issuer, and the catalog gives the audience as the Army's own forces. The FRAME record says nothing more about Eisner, so his biography stays off this page. The archive holds many other Joe Dope sheets. This site has pages for three of them: Joe Dope Camouflaged His Garand (1942), the Cal. .50 comic (1943) and Joe Dope Isn't Bughouse or Lazy (1944).
The insult is mild and the instruction does the work
The archive tags name-calling for "Don't be a dope!" and judges it faint beside the practical lesson. That reading holds. The label is a joke aimed at a fictional soldier, and the poster's real content is a maintenance rule with a reason attached: after one cleaning the rifle "sweats," pits form in the barrel, accuracy goes, so clean it three days running.
Training material that explains why a rule exists treats soldiers as people who can follow cause and effect. Compare the 1941 Navy recruiting verse A Call to a Breed That Never Dies, which uses rhyme to recruit rather than to instruct.
Sources
FRAME object record, Joe Dope cleaned his rifle, oh yes, 1941. Ordnance Department, U.S. Army; artist Will Eisner. Rights as recorded: public domain (U.S. government work).
U.S. National Archives and Records Administration, Record Group 44, World War II Posters, 44-PA-1143HH, NAID 514702, retrieved by the archive 4 October 2026.
