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Adventure Comics #240
CGC Census
33
Total Graded
0
9.8 NM/MT
6
8.0 VF
A robot teacher constructed by Jor-El comes to Earth to decide if Superboy is worthy of his power.
Cover Date
September 1, 1957
On Sale Date
July 28, 1957
Pages
36
Cover Price
$0.10
Rating
Approved by the Comics Code Authority
Editor
George Kashdan
Credits
Writer
Penciller
Inker
Letterer
Characters
Jor-El (flashback); Lara (flashback); Robot Teacher; Lana Lang; Ma Kent
superhero