Pencils: Previously Mike Sekowsky. It is a reworking of the cover of Mystery in Space #18 February-March 1954 "The Chain Gang of Space" which was also illustrated by Murphy Anderson. Info by Bob Bailey, 2005-03-19 (Per Sandell ed.). Lettering credit from reprint in JLA Archives.
First JLA-JSA team-up concludes.
Story is told in three chapters, each ending in 2/3 page.