Includes multiple Superman & Batman team-ups, key Justice League crossovers, and classic sci-fi and hero titles. Justice League of America #21 – “Crisis on Earth-One” (key 1st JLA/JSA crossover). Justice League of America #22 – “Crisis on Earth-Two” (part two, major key). World’s Finest Comics #131, #136, #138, #139 – Superman/Batman adventures. Aquaman #30 – Justice Is. The Liquidator! Metal Men #15 – The Floating Furies! Tales of the Unexpected #77, #82 – early sci-fi stories. Mystery in Space #90 – featuring Adam Strange. Adventure Comics #304 – Legion of Super-Heroes featuring Mon-El. All are complete, unrestored, and in solid mid-grade condition approx. G to FN with typical age wear, light spine stress, and cover gloss loss on some issues. No missing pages or major defects noted. (See pics for condition). Original 12-cent DC Silver Age comics. Includes two Justice League key crossover issues (#21 & #22). Classic Superman, Batman, and Aquaman stories. Great investment lot or starter collection.