Check out this amazing resource for viewing comics online. Its called ViewComics. https://www.viewcomics.net/
There's so much in there - entire comics to view at your leisure. There's my beloved early issues of Warren's Creepy and Eerie which I plan to enjoy this summer without having to get my whole collection out of the loft.
There's also tons of TV21 comics and by way of introduction to this site I thought I'd revisit issue 87, which not only features the origin of the Spacex Salvage Craft [above] - the GK-10 below] and Nuclear freighter ...
.... but also the Spacex Tractor T-5 [both discovered by Wotan and Scoop respectively about 10 years ago here on Moonbase].
So without further ado here's the link to page 15 of TV21 #87, the first sighting of the GK-10 in Fireball XL5.
The story continues up to issue 89 and the GK-10 appears again there.
There's a neat A-Z on the site. Enjoy searching for your fave comics!
What do you think?