Another Woolie Reitherman original, this from the 1941 Disney feature The Reluctant Dragon.
The live-action/animated feature starred Robert Benchley as himself, touring the Disney studio (and running into Norm Ferguson and Ward Kimball among others. TRD is a strange amalgamation of actors and Disney staffers. Actor Alan Ladd appears as a Disney story artist, while animator Reitherman appears as ... an animator in a drawing class.)
The feature includes three cartoon shorts: "How To Ride A Horse" starring Goofy in the first "How To" cartoon, "Baby Weems", and the title short.
The Reluctant Dragon was released during the 1941 Disney strike and was not a barn burner at the boxoffice. Guild members dressed up in tuxes and evening gowns and rented fancy cars to arrive at the premiere, then got out of the cars and marched with their picket signs. Strike leader and future Local 839 president Moe Gollub's date was inker Nancy Bedell, who married designer Reg Massie a year later and parented our illustrious Recording Secretary Jeff Massie.
Below, the complete cartoon of The Reluctant Dragon (just the cartoon, not the entire feature).