Barry Sandoval, director of operations of Heritage's comics division, says that the consignor bought the comic in the late 1960s for $100.

DALLAS — Heritage Auction Galleries says a 1939 comic book in which Batman makes his debut has sold at auction in Dallas for more than $1 million — setting a record for the amount paid for a comic. The rare copy of Detective Comics No. 27 from 1939 went for $1,075,500 Thursday. A Heritage official says it was sold on behalf of an anonymous consignor and the buyer wished to remain anonymous as well.

Barry Sandoval, director of operations of Heritage's comics division, says that the consignor bought the comic in the late 1960s for $100.

On Monday, a copy of the first comic book featuring Superman sold for $1 million in a sale between a private seller and a private buyer. The comic was a 1938 edition of Action Comics No. 1.