Per indicia: Copyright 1998 Michael Mignola. Printed in Canada.
in B.P.R.D. (Dark Horse, 2003 series) #[1] - Hollow Earth & Other Stories (January 2003) [grayscaled]
in AIDP (NORMA Editorial, 2004 series) #1 - Las Tierras Huecas (Marzo 2004)
in B.P.R.D.: Plague of Frogs (Dark Horse, 2011 series) #1 (February 2011)The inside front cover has logo, credits, and indicia with fish skeleton from back cover.
in B.P.R.D. (Dark Horse, 2003 series) #[1] - Hollow Earth & Other Stories (January 2003)
in AIDP (NORMA Editorial, 2004 series) #1 - Las Tierras Huecas (Marzo 2004)
in B.P.R.D.: Plague of Frogs (Dark Horse, 2011 series) #1 (February 2011)Title from inside front cover. Story begins: "It always starts with sharks."
in Hellboy: Seed of Destruction (Dark Horse, 1994 series) #4 (June 1994)
in Hellboy (Dark Horse, 1994 series) #[4] - The Right Hand of Doom (April 2000)The inside back cover promotes the upcoming Hellboy: The Chained Coffin and Others trade paperback.