This issue is a variant of World's Finest Comics (DC, 1941 series) #290 [Direct-Sales].
Vs Stalogron, 1st. Also in 291.
Letters of comment from Stephen Gawronski, T.M. Maple, Jeanine Powers, Andrew J. MacLaney, Kevin T. Brown, Keith Wobbema, Eric Chastain, Brett Burford, Chris Sullivan, Ed Little, George Tackes, and Michael Thomas Foutch Jr.