Action Comics #277: "The Battle of the Super-Pets!"

Download Action Comics #277

Script: Jerry Siegel

Pencils and inks: Jim Mooney

Characters:

Supergirl; Streaky; Krypto; Superman; Green Kryptonite; Mr. Mxyzptlk (image); The Interplanetary Multi-Dimensional Practical Jokers Club; Super-Monkey (cameo)

Reprinted:

• in Action Comics (DC, 1938 series) #373 (March 1969)
• in Supergirl Archives (DC, 2001 series) #2
• in Showcase Presents: Supergirl (DC, 2007 series) #1