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First Appearance · DC / Vertigo
First appeared in Swamp Thing #37 · 2015
About the character
The cynical, chain-smoking British occultist John Constantine navigates a world of demons, angels and dark magic with wit and ruthlessness. First appeared in Swamp Thing #37 and went on to headline the landmark Hellblazer series.
What is a first appearance worth?
Swamp Thing #37 has solid collector demand. A presentable raw copy in the UK typically attracts an offer in the low to mid three figures; high-grade or CGC-slabbed examples can push into four figures. Restored copies are worth less but still very much wanted — we buy across all grades and conditions.
Exact figures depend on grade and condition. See the full Swamp Thing #37 valuation guide →
Selling your Swamp Thing #37 — quick answers
Where did John Constantine first appear?
John Constantine first appeared in Swamp Thing #37 (2015). The cynical, chain-smoking British occultist John Constantine navigates a world of demons, angels and dark magic with wit and ruthlessness. First appeared in Swamp Thing #37 and we…
How do I get a valuation for my copy of Swamp Thing #37?
Send us a few photos (front cover, back cover, and spine) using our enquiry form. One of our specialist buyers will respond, usually the same working day, with a clear cash offer or any follow-up questions we need answered.
Do you buy first appearances in any condition?
Yes — we buy across the full condition spectrum from reading copies to CGC-certified slabs. The offer reflects the actual grade, and we will always explain our reasoning. There is no pressure and no obligation.
Selling your John Constantine first appearance?
Get my offer →Other DC / Vertigo first appearances we buy
