Hell Below

Doc Savage 1943 September

Doc Savage Mixes Things With An Old Indian Fighter, A Scatter-Brained Heiress, And A Couple Of Nazi Submarines

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Amphibian Lifeboat Speeds Rescues

Popular Science January 1937 thumbnail
Popular Science January 1937 thumbnail
Popular Science January 1937
Popular Science January 1937

This entire issue can be read here

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Island Loot

Detective Fiction Weekly December 20 1930

Also, Cornelius Vanderbilt Jr on Rich Blackmail Victims: How The Underworld Sets Traps For Millionaires! 

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