https://esovitae.com/the-cardiff-giant-a-famous-hoax/
The Cardiff Giant Hoax: How a Gypsum Statue Fooled America
How the 1869 Cardiff Giant hoax fooled America: George Hull's Iowa-gypsum sculpture, the six-week tent run, and Marsh's verdict.
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https://www.pbleighton.com/cardiff-giant
Cardiff Giant — peter brown leighton : penny prints press
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