This issue is a variant of Jonah Hex (DC, 1977 series) #89 [Direct].
There exist further variants.
On-sale date from DC Releases #9.
Hannigan pencils per Nick Caputo. Previous indexer credited Hannigan with layout and DeZuniga with pencils.
The Gray Ghost's son tries to kill Jonah.
Letters from: Barry Burnham and John Lynch. Brief promo blurb for Jonah's new series.