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Adventure Comics #250
CGC Census
23
Total Graded
0
9.8 NM/MT
3
8.0 VF
Reprinted 7x
A criminal from the 30th Century comes to Smallville to get Cobalt to build a cobalt bomb, and disguises himself as a local resident and Superboy has to figure out which one.
Cover Date
July 1, 1958
On Sale Date
May 29, 1958
Pages
36
Cover Price
$0.10
Rating
Approved by the Comics Code Authority
Editor
George Kashdan
Credits
Writer
Penciller
Inker
Letterer
Characters
Lorac-K7; Mayor Brook; Principal Sands; Inspector Edaw-8; Mr. Carr
superhero