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Cover: Howard Purcell
Sea Devils #21
☆ Be the first to review + Add to your collection — Join freeContains 3 stories
The Forty-Fathom Doom!
Sea DevilsDoctor Quad
Chapter 2: The Octopus with the Human Brain
Sea DevilsDr. Quad
Chapter 3: Dr. Quad's Secret Weapon
Sea DevilsDr. Quad
ComicBooks.com Value
Our Model is In Beta
Raw (VG) $8
CGC 9.8 · 3 in census $2,147*
CGC 9.6 · 2 in census $670*
CGC 9.4 · 3 in census $343*
CGC 9.2 · 2 in census $199*
CGC 9.0 · 1 in census $135*
CGC 8.5 · 4 in census $92*
Show all 19 grades ▾
CGC 8.0 · 1 in census $71*
CGC 7.5 none in existence
CGC 7.0 · 2 in census $47*
CGC 6.5 none in existence
CGC 6.0 none in existence
CGC 5.5 none in existence
CGC 5.0 none in existence
CGC 4.5 none in existence
CGC 4.0 none in existence
CGC 3.5 none in existence
CGC 3.0 none in existence
CGC 2.5 none in existence
CGC 2.0 none in existence
* estimate — limited direct-sales data at this grade
Our model’s value — refined as new sales data arrives · CGC census counts shown where available
This exact issue on ebay
Raw — VF+ $45 1 listing Raw — VG+ $21.3 1 listing Raw — GD $11.49 1 listing
Raw / ungraded ▾ $2.99–$66.73 9 listings
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Reprints
Reprinted in Historias Fantásticas #136 (1965), Etranges Aventures #19 (1971)
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