Billy the Kid #139

Billy the Kid #139 was published by Charlton Comics during the mid-1960s, a period when the publisher was a prolific producer of western-themed comic books. As part of a long-running series that began in the 1950s, this issue reflects the industry's shift toward standardized genre storytelling aimed at a younger demographic of readers who favored tales of frontier justice and outlaw lore.

The art and narrative style of this era were defined by the house aesthetic of Charlton, which relied on efficient production and a revolving pool of talent to maintain a consistent output. While specific creative credits for individual issues within this series are often obscured by the publisher's practice of utilizing freelance artists and writers without bylines, the book serves as a quintessential example of mid-century pulp western comics, noted today primarily for its cover art and its role in the extensive history of Charlton’s non-superhero publications.