World's Finest Comics 1941 #151 - 3.0 - $9.00

Cover detached from bottom staple

Hank has to stay in the city instead of visiting his friend in the country, but he learns there are a lot of fun things to do right in his city.

Batman uses a Kryptonian evolution machine to evolve himself but becomes jealous of Superman and turns him into a caveman.

Super-Turtle tries to keep trim by flying into the sky and zooming down, burrowing underground. He discovers a stack of gold bars, assuming they were buried by crooks, but then realizes he has breached Fort Knox.

Caveman Superman chases Batman into the future and then takes him to prehistoric times.

Congo Bill runs berserk when he accidentally rubs his ring and switches places with Congorilla while in the middle of a town.

On-sale date from copyright registration.

• The Infinite Evolutions of Superman and Batman! - Robin does not appear. Letters credit from Todd Klein via his Klein Letters blog (18 September 2016, http://kleinletters.com/Blog/ira-schnapp-in-worlds-finest-comics-part-1/).
• Summer at Home Can Be Fun! - Inside front cover.
• The Infinite Evolutions of Batman and Superman! Part I - credits confirmed by Cary Bates
• Flight of the P-26 - On the page between page 6 and page 7 of the main story sequence.
• - Letters from James Benning, Andy Penry and Al Taylor, Linda Simpson, Ben Creisler, Marc Schrechter, Gregory Feldman, Randy Garron, Henry Ryder, and Wynn Brewster.
• Congorilla's Last Stand! - Surprise Feature
• - On the page between page 2 and page 3 of the main story sequence.
• - On the page between page 2 and page 3 of the main story sequence.
• - Inside back cover.
• - Back cover.