The original art is signed by Sal Buscema (info submitted by mikebo via the GCD Error Tracker). Buscema fully rendered a Severin sketch for the cover of #69 and that may be the process here, although in this period others including John Romita and Ed Hannigan worked on cover designs.
After examining the original art Nick Caputo suspects that Romita inked the cover with a possible touch-up on the Demon's face by Cockrum.
Steve Whitaker previously credited Sal Buscema on pencils and Al Milgrom on inks with Storm penciled and inked by Dave Cockrum. Marvel's Official Index to the X-Men #2 credited Marie Severin on pencils and Sal Buscema on inks.
First time Wolverine goes into a berserker rage. First mention of Storm's claustrophobia.
Letters of comment from Eddy Shapiro, Greg Flood and Jack Callenberg.