Marvel G.I. Joe Vol 1 #51 Newsstand Key

1st appearance of Zandar, a Dreadnok
1st appearance of Thrasher, a Dreadnok
1st appearance of Thunder, a tank operator
1st appearance of Toll Booth, tank operator

Art by: John Byrne
Cover Date: September, 1986
Editor-in-Chief: Jim Shooter
"Thunder Machine"
Writer(s): Larry Hama
Penciler(s): Rod Whigham
Inker(s): Andy Mushynsky
Colorist(s): George Roussos
Letterer(s): Joe Rosen
Editor(s): Bob Harras, Don Daley