Swamp Thing (1972) Mark Jeweler comic books
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Published September 1973 by DC.$9.60
Mark Jeweler Advertisement Insert Variant. It is believed these variants were distributed only in regions near U.S. military bases. "A Clockwork Horror." Swamp Thing, Matt Cable and Abby Arcane go to Burgess Town, where humanoid robots (including dupes of Alec and Linda Holland) reside. Script by Len Wein, art and cover by Berni Wrightson. Cover price $0.20.

