Authentic Signed Copy of 'Action Comics' #1
$15 million
Estimated value as of 2026 · Private sale of CGC 9.0 copy via ComicConnect and Metropolis Collectibles[1][2][5]
The first appearance of Superman in 1938, with a signed copy worth over $3.2 million.
Fun fact An authenticated and signed first issue of Action Comics sold for $3.2 million in 2014, making it the most valuable comic book ever.
Price History
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