Superboy #177

Superboy #177 (On Sale: July 8, 1971), has a cover by Dick Giordano.

We begin with "Our Traitor Super-Son" by Leo Dorfman, Bob Brown, and Murphy Anderson. Lex Luthor takes on the guise of Cerebron with a mental amplifier that enables him to deduce that the Kents are the foster parents of Superboy. To get them into protective custody without revealing his connection to them, Superboy has them jailed for selling "contaminated" food. 

Then, after keeping his stash of super-weapons and robots out of Luthor's hands by moving it frequently, he finally defeats Luthor, removes his cerebral amplifier, and convinces him he was wrong about the Kents.

Our new backup is "Plague from the Past" by Leo Dorfman, Bob Brown, and Murphy Anderson. When a plague from a long-unopened pharaoh's coffin unleashes a terrible plague on Smallville, Superboy employs a statue of Anubis to send himself back in time and undo the coffin opening. Reprinted in Best of DC #7 (1980).

The reprint is the Legion of Super-Heroes in "The Revenge of the Knave from Krypton" by Jerry Siegel, John Forte, and inkers Sheldon Moldoff, George Papp, and Al Plastino and reprinted from Adventure Comics #320 (1964). After finishing his homework, Superboy travels to the 30th Century for his regular visit with the Legion of Super-Heroes. There they are alerted by the security system of an intruder and Superboy is shocked to find it is his old tormentor Dev-Em. Capturing Dev-Em, Superboy explains how Dev-Em was a juvenile delinquent on Krypton who was sentenced to suspended animation, survived Krypton's destruction, and was revived on 20th Century Earth. 

Superboy then recounts how Dev-Em managed to trap Superboy in the Phantom Zone and pose as him to cause chaos around Earth. After returning from the Phantom Zone, Superboy was unable to stop Dev-Em who escaped into the distant future. Superboy would finish his story by explaining that the only way he was able to clear his name was with the help of his friend Chief Parker who told everyone Red Kryptonite was the "reason" for Superboy's rampage.

However, it is revealed that Dev-Em has turned over a new leaf in the 30th Century and is a member of the Inter-Stellar Counter-Intelligence Corps. However, when reporting back into the I.C.C., Dev-Em has his mission to stop interplanetary criminal Molock to Superboy. Disguising himself as Dev-Em, Superboy manages to bluff Molock with fake Gold Kryptonite, which is actually Proty II in disguise. After Superboy smashes up Molock's operation and turns him over to the police, the Legion offers Dev-Em membership in the Legion, to which Dev-Em declines, preferring to work with the I.C.C.

Edited by Murray Boltinoff.