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Saga of the Swamp Thing
#20 · 1984
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DC Comics · 1984 · CGC 9.6 · Universal Blue
Saga of the Swamp Thing #20 (DC Comics, 1984). CGC 9.6 Near Mint+.
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Saga of the Swamp Thing #20, published by DC Comics in 1984 (Bronze Age).
Graded CGC 9.6 Near Mint+. Certification number 0264695004, which can be checked on the CGC website. The book is sealed in its tamper-evident CGC holder.
This copy is encapsulated by CGC at 9.6 on a Universal Blue label under certification number 0264695004, which you can verify independently on the CGC website before you buy. The holder is intact and has not been cracked, re-sealed or altered.
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Background on Saga of the Swamp Thing, the grade and what drives the price.
Characters
John Constantine's first full appearance is The Saga of the Swamp Thing #37, cover-dated June 1985, by Alan Moore, Stephen Bissette and John Totleben, who modelled his look on the musician Sting. He can be glimpsed in background cameos in Saga of the Swamp Thing #25 (June 1984). Constantine's own series, Hellblazer, began in January 1988 and ran 300 issues.
Updated Oct 10, 2026
AuctionsConfirmed
According to The Beat's report from New York Comic Con, ICv2's Milton Greipp estimated at Thursday's ICv2 White Paper that comics sales in comic shops are up 19% so far in 2026, with graphic novels up 28%. The Beat notes this comes against even bigger growth last year.
Oct 9, 2026
Values
A comic book values price guide gives a reference figure for a title, issue and grade, but it is not what a particular copy will sell for. The real value comes from the exact condition of your copy and what comparable copies have recently sold for.
Updated Oct 11, 2026
Key issues
Wonder Woman was created by William Moulton Marston and artist H. G. Peter and first appeared in All Star Comics #8, published by DC Comics with a cover date of December 1941 – January 1942. That issue is the original Wonder Woman comic that collectors mean by her first appearance.
Updated Oct 11, 2026
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