A copy of the comic that introduced Captain America to the world has sold for $716,750 at Heritage Auctions, topping four days of comics and comic-art sales in Dallas that together realized $18.17 million. The CGC 9.0-graded Captain America Comics No. 1, published by Timely Comics in 1941, introduced Steve Rogers, Bucky Barnes and the Red Skull, and carries the famous Joe Simon and Jack Kirby cover of the hero punching Adolf Hitler. It is one of only two known copies at that grade. The book came from the newly uncovered Merrimack Valley Collection, an original-owner stash of Golden Age comics bought off the newsstand in the early 1940s and left largely untouched in a brown cardboard box for 75 to 80 years. The Comic Books Signature Auction totaled $8,425,785, and the concurrent Comic Art Signature Auction added $9,748,344. Other highlights from the collection included a CGC 9.4 Captain America No. 3 - the second-finest known - at $268,400, a 2.5-graded Batman No. 1 at $158,600 and a 9.0 Batman No. 9 at $103,700. Original art performed strongly as well. Jerry Robinson's 1942 cover for Detective Comics No. 68 - Two-Face's first cover appearance - led the comic-art sale at $475,000. Pages from Frank Miller's late-1970s and early-1980s Daredevil run drew fierce bidding: the first story appearance of Elektra, page 4 of issue 168, made $450,000; the issue's hand-colored title page reached $106,250; and page 35 of issue 181, showing Daredevil's rooftop confrontation with Bullseye, sold for $325,000. A wraparound Teenage Mutant Ninja Turtles cover by Peter Laird and Kevin Eastman brought $118,750. Heritage vice president Aaron White called the Merrimack Valley group a "wonderful discovery," saying it was gratifying to see collectors reward top-condition examples of landmark issues. The results confirmed sustained demand for fresh-to-market Golden Age keys, with original comic art advancing alongside the rarest published books across the four-day showing.