There were many valuable pulp magazine titles that were published during the first half of the 20th century. While not all titles or issues are valuable, here are some examples of key pulp magazines:

• Weird Tales: Weird Tales was one of the most famous and influential pulp magazines of the time. It was known for its lurid and sensational subject matter, and it helped to establish many of the conventions and tropes that are still found in horror and fantasy fiction today.
• Black Mask: Black Mask was a pulp magazine that was known for its hard-boiled detective stories. It was published from 1920 to 1951, and it featured many well-known authors, including Dashiell Hammett and Raymond Chandler. Black Mask helped to shape the crime genre and establish many of the conventions that are still found in detective fiction today.
• Argosy: Argosy was a pulp magazine that was published from 1896 to 1978. It was one of the longest-running pulp magazines, and it featured a wide range of genres, including adventure, romance, and science fiction. Argosy was known for its thrilling stories and larger-than-life characters, and it helped to establish many of the conventions of the pulp genre.
• The All-Story Magazine: The All-Story Magazine was a pulp magazine that was published from 1905 to 1920. It featured a wide range of stories, including science fiction, fantasy, and adventure. It was the first magazine to publish a Tarzan story and a Zorro story.
• Amazing Stories: Amazing Stories was one of the first science fiction pulp magazines. It was published from 1926 to 2005, and it featured many well-known authors, including H.G. Wells and Isaac Asimov. Amazing Stories helped to establish the science fiction genre and inspire many future writers and creators.
• Astounding Stories: Astounding Stories was a pulp magazine that was published from 1930 to 1960. It was known for its high-quality science fiction stories, and it featured many well-known authors, including Robert Heinlein and L. Ron Hubbard. Astounding Stories helped to establish many of the conventions of the science fiction genre and inspire future writers and creators.
• The Shadow: The Shadow was a pulp magazine that was published from 1931 to 1949. It featured stories about The Shadow, a crime-fighting vigilante who fought against evil using his powers of invisibility and mind control.
• The Magic Carpet Magazine: The Magic Carpet Magazine was a pulp magazine that was published from 1929 to 1933. It featured stories about The Shadow, as well as other fantasy and science fiction stories.
• The Phantom Detective: The Phantom Detective was a pulp magazine that was published from 1933 to 1953. It featured stories about The Phantom Detective, a crime-fighting vigilante who used his powers of disguise and deduction to solve crimes.
• The Spider: The Spider was a pulp magazine that was published from 1933 to 1943. It featured stories about The Spider, a crime-fighting vigilante who used his powers of strength and agility to fight evil.

These are just a few examples of the many important pulp magazines that were published during the first half of the 20th century. For more titles, please look at our page on the History of Pulp Magazines.

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